Opinion for the Court filed by Circuit Judge SENTELLE.
On June 29,1987, the Secretary of Transportation announced a plan for testing certain employees of the Department of Transportation (“Department”) for unlawful drug use. Order 3910.1, “Drug-Free Departmental Workplace,” U.S. Dep’t of Transportation, June 29, 1987 (“Order 3910.1”), Joint Appendix (“J.A.”) at 17. Depending on the safety and security “crit-icalness” of the duties or prospective duties, employees and applicants may be subjected to urinalysis in one or more of seven circumstances. 1 Those employed in “Category I” positions — jobs determined by the Department to have a direct impact on public health, safety, or national security-may be required to submit to random testing.
Appellants, the American Federation of Government Employees and certain Category I employees, brought suit to enjoin the suspicionless testing, alleging,
inter alia,
violations of the Fourth and Fifth Amendments, the Rehabilitation Act of 1973, 29 U.S.C. §§ 701-795i (1982 & Supp. V 1988), and the Administrative Procedure Act (“APA”), 5 U.S.C. §§ 551,
et seq.
(1982). The District Court’s Fourth Amendment analysis focused on our opinion in
NFFE v. Weinberger,
In this appeal appellants renew their contentions of Fourth Amendment and statutory violations. We affirm.
I.
According to Executive Order 12,564, signed by President Ronald Reagan on September 15,1986, on- or off-duty illegal drug use by federal employees “evidences less than the complete reliability, stability, and good judgment that is consistent with access to sensitive information and creates the possibility of coercion, influence, and irresponsible action under pressure.” Exec. Order No. 12,564, 3 C.F.R. 224 (1987), reprinted in 5 U.S.C. § 7301 note at 175-77 (Supp. IV 1986). The Order accordingly directed executive-branch agencies to establish mandatory programs to test employees in “sensitive positions” for the use of illegal drugs. The Department became *887 the first executive agency to implement a drug-testing program pursuant to the President’s Order. Departmental Order 3910.1 establishes two categories of employees subject to testing, so designated because of their “safety and security criticalness.” Order 3910.1, Ch. III, § 2, J.A. at 28. Employees whose positions bear “a direct and immediate impact on public health and safety, the protection of life and property, law enforcement, or national security,” i.e., Category I employees, are made subject to five types of testing: (1) random; (2) periodic “if they are required to take periodic physical examinations”; (3) reasonable suspicion; (4) accident or unsafe practice; and (5) follow-up. Order 3901.1, Ch. III, § 3(A), J.A. at 28-29. All applicants for Category I positions must submit to pre-appointment testing. Id., J.A. at 29. All other employees in sensitive positions, classified as “Category II” employees, are subject to reasonable suspicion, accident or unsafe practice, and follow-up testing. Id. § 3(B), J.A. at 29. As of June, 1987, the Department had classified nearly 30,000 of its approximately 62,000 employees in Category I. J.A. at 769.
Nearly two-thirds of the employees subject to random and periodic urinalysis testing are air traffic controllers, id., a group of employees not party to these proceedings, see Brief for Appellants at 23 n. 17. 3 Nearly twenty-two percent are employed as “electronic technicians.” J.A. at 769. The remaining twelve percent are, among others, aviation safety inspectors (3%), motor carrier and highway safety specialists (1%), railroad safety inspectors (1.1%), civil aviation security specialists (.9%), aircraft mechanics (.7%), and motor vehicle operators (.2%). Id. at 769-70. 4
The testing procedures employed by the Department are substantially identical to those used by the Army to test its civilians, which we outlined in
NFFE v. Cheney,
Unlike the Army program, the Department’s plan permits an employee who has tested positive to insist that the sample be tested again, either at the site of the original tests or, at his own expense, “at another qualified laboratory identified by the employee.” Id. § 9(E), J.A. at 39. Although a Category I employee who tests positive “will be assigned non-safety or non-security duties,” id. Ch. IV, § 6, J.A. at 42, he may not be discharged solely because of a single positive test result, id. Ch. VI, § 1(B), J.A. at 45. Absent additional circumstances, an employee will be removed from federal service only if he tests positive a second time. 5
II.
As in
Harmon v. Thornburgh,
In their supplemental brief, filed at our direction after the Supreme Court issued its opinions, appellants argue that Skinner and Von Raab “should have little or no impact upon the decision in the instant case.” Supplemental Brief for Appellants at 2. On a general level, appellants contend that “the results of NTEU and RLEA have no bearing on the employees in the instant case,” who are neither engaged in drug interdiction nor employed as “operational members of train crews.” Id. at 1. Appellants also argue that random testing, the exclusive focus of our attention, 6 is *889 “vastly more intrusive than the limited drug testing” approved by the Supreme Court. Id.
We first must determine whether the Department’s plan “serves special governmental needs, beyond the normal need of law enforcement.”
Von Raab,
These contentions give us little pause. Initially, even if we were to assume, as amicus contends, id. at 5 n. 4, that the animating motive behind Executive Order 12,564 was the mandatory testing of all federal employees, 7 the Department’s program tests only those whose duties bear “a direct and immediate impact on public health and safety, the protection of life and property, law enforcement or national security.” Order 3910.1, Ch. III, § 3(A), J.A. at 28. Law enforcement appears nowhere among the program’s stated goals, and more to the point, non-consensual disclosure of test results to police authorities is proscribed both by regulation and statute. See HHS Reg. § 2.8; Pub.L. No. 100-71, § 503(e), 101 Stat. 471 (1987).
There can be little doubt, then, that the testing plan serves needs other than law enforcement, and therefore need not necessarily be supported by any level of particularized suspicion. In order to determine the appropriate standard of reasonableness, we are “to balance the individual[s’] privacy expectations against the Government’s interest to determine whether it is impractical to require a warrant or some level of individualized suspicion in the particular context.”
Von Raab,
III.
The Department identified as Category I personnel those employed in some twenty different positions relating to air, rail, highway, and water transportation. 8 More *890 than 94% of the employees subject to random testing under the plan work for the Federal Aviation Administration (“FAA”). J.A. at 769. As we noted earlier, nearly two-thirds of the covered employees occupy a single position, air traffic controller, and are not parties to this litigation. See supra note 3 and accompanying text. Of the remainder, most are, to varying degrees, employed in positions relating to transportation safety, among them mechanics, inspectors, and engineers.
As the District Court noted, written justifications were not produced for each covered position.
See
Before addressing the three specifically challenged positions, we note that the record amply evidences the extraordinary safety sensitivity of the bulk of the covered positions. For example, FRA safety inspectors and safety specialists are charged with the duties of reviewing railroad operating practices, inspecting track and signal conditions, and enforcing compliance with safety laws and regulations. J.A. at 465. The Federal Highway Administration’s highway and motor carrier safety specialists are charged with similar duties, including handling of hazardous materials, investigating trucking companies’ safety system, and exploring unsafe practices complaints. J.A. at 771.
The duties of lock and dam operators at the Saint Lawrence Seaway Development Corporation, an operating administration within the Department, are responsible for guiding commercial vessels and pleasure craft through the lock area, which includes the lock chamber, adjacent control towers, and approach walls. Lock operators are responsible for negotiating craft through the lock chamber. J.A. at 471-72. Vessel traffic controllers are similarly responsible for navigating traffic along 140 miles of the St. Lawrence River, its twenty ports, and Lake Ontario. J.A. at 472.
It would appear that the Supreme Court’s rationale for upholding testing of certain railroad personnel in Skinner is the natural starting point to determine whether the Department’s asserted safety interests justify the testing of employees so intimately involved with safe transportation. In Skinner, the Supreme Court reviewed FRA-adopted regulations authorizing private railroads to toxicologically test certain of their employees. Under the FRA regulations, private railroads are empowered to subject to urine and blood or breath tests all railway crew members and other covered employees “directly involved” in certain incidents and specified safety breaches. Like the Department’s program, the FRA regulations provide for two types of urine testing, a screening test and a confirmatory test utilizing gas chromatography/mass spectrometry methods, before a sample is deemed positive for the presence of drugs.
The Court identified several governmental interests advanced by testing railroad crew members who perform “duties fraught with ... risks of injury.”
Skinner,
We find this analysis fully applicable in the present case. While it is true that the regulations sustained in
Skinner
required testing only after a triggering event and in a medical environment, we do not find that either of these facts compels “a fundamentally different analysis from that pursued by the Supreme Court.”
Harmon,
We also find applicable the reasoning in our decision in
Jones v. McKenzie,
As we noted earlier, appellants have singled out for attack the inclusion of three categories of employees: motor vehicle operators, FRA hazardous material inspectors, and FAA aircraft mechanics.
See
Brief for Appellants at 28-29;
cf.
Supplemental Brief for Appellants at 1 n. 1. The District Court concluded that the inclusion of these employees was “fully justified within the program.”
Dole,
*892
Appellants also challenge the inclusion of an FAA aircraft mechanic who inspects and maintains FAA aircraft. We need look no further than our recent opinion in
Cheney
for guidance on this classification. In sustaining the Army’s testing of air traffic controllers, pilots, and aviation mechanics, we noted that “[a] single drug-related lapse by any covered employee could have irreversible and calamitous consequences.”
Cheney,
at 610. The record in the present case amply supports the same conclusion. Covered mechanics perform pre-flight inspections and overhauls, and install and maintain electronic instrumentation and other flight control equipment. J.A. at 772. Given that a drug-related lapse could portend irreparable injury to life and property, mandatory, random urinalysis does not appear to be an unreasonable means of detecting and preventing that risk.
See also Von Raab,
109
S.Ct
at 1395 & n. 3;
United States v. Edwards,
The third challenged position, encompassing one-fifth of one percent of the total number of Category I employees, is motor vehicle operator. See J.A. at 262. As their sole argument of unconstitutionality, appellants point to a union member driver whose exclusive duties entail driving a mail van, and ask: “Is this a vital position requiring compromise of the 4th Amendment for an overriding public safety concern?” Brief for Appellants at 28.
As noted by the District Court, strong safety interests support the testing of most Department motor vehicle operators, who are responsible for,
inter alia,
the transportation of visiting foreign dignitaries and key Department officials and the operation of passenger-laden shuttle buses.
See
The inclusion of a mail van operator does not demonstrate the unreasonableness of the plan. Initially, all drivers are subject to extensive background investigations and have either a top secret or secret security clearance. J.A. at 852.
Von Raab
teaches that the government may properly make urine testing a requirement for those who are “likely to gain access to sensitive information.”
In
Harmon,
we recognized that whatever the boundaries of “truly sensitive” information, top secret materials “lie at its
very core.” Harmon,
In the present case, we believe that faithful application of the Supreme Court’s teachings in
Von Raab
and our own precedent command that we find that the government’s interest in protecting truly sensitive information from one who “ ‘under compulsion of circumstances or for other reasons, ... might compromise [such] information,’ ”
Von Raab,
We also find significant the fact that employees in each of the three covered positions work in settings other than the “more traditional office environments,”
Von Raab,
IV.
Apart from their claims of constitutional error, appellants maintain that the District Court erred in granting summary judgment, as there remained outstanding issues of material fact. On appeal from an order granting summary judgment, we review the record
de novo
to determine whether it supports that order.
Riddell v. Riddell Washington Corp.,
The Supreme Court has indicated that the allocation of the substantive burden of proof informs our decision on the propriety of the grant of summary judgment.
See Celotex Corp. v. Catrett,
There is surprisingly little authority discussing the allocation of the burden of proof in drug-testing cases. Although neither
Von Raab
nor
Skinner
directly addressed this question,
Von Raab
may hint that the burden rests with the government to prove reasonableness: “[W]e believe that the Government has demonstrated that its compelling interests in safeguarding our borders and the public safety outweigh the privacy expectations” of personnel who interdict illegal drugs and carry firearms.
On the other hand, in a civil action brought pursuant to 42 U.S.C. § 1983, it appears that the plaintiff shoulders the burden of proving each element essential to his case, including the illegality of the government conduct in question.
See, e.g., Everett v. Napper,
We need not resolve the question of the allocation of the burden of proving the reasonableness vel non of the testing regime, for even if we assume that the burden rests with the government, we conclude that the government established that there is no genuine issue as to any material fact that it must prove at trial and that it is entitled to judgment as a matter of law.
Among the issues identified by appellants as material, and therefore preclusive of summary judgment, was the accuracy of the urinalysis testing procedures used by the Department.
See
Statement of Genuine Issues of Material Fact 3, at 1-2, J.A. at 65-66. Inspection of the referenced portions of the record reveals that the parties did in fact disagree over the accuracy of the testing procedures: while the Department contended that the GC/MS technique could be 100% accurate, appellants maintained that testing could produce an error rate of one percent.
See
J.A. at 143;
see also
Reply to Defendant’s Opposition to Plaintiffs Motion for Preliminary Injunction at 11. While in some contexts such a disagreement might be sufficient to create a triable question of fact, such is not the case here. First, because this is a facial attack on the Department’s program, we decide only “whether the tests contemplated by the regulations can
ever
be conducted.”
Skinner,
Appellants also identified as a genuine issue of material fact the extent of drug use among Department employees.
See
Statement of Genuine Issues of Material Fact B, at 3, J.A. at 67. The referenced portion of the record reveals that the declarant knew of no drug use among the fifteen motor vehicle operators with whom he worked.
See
J.A. at 262. Even if we were to assume that the declaration sufficiently demonstrates a genuine disagreement as to the extent of Departmental-wide drug use, the claim would not create a triable issue of fact.
Von Raab
indicates that a history of intra-agency drug use is not an essential ingredient in establishing the reasonableness of a testing regime. There it was contended that the Customs Service’s program was unreasonable because all but a few of the tested employees were entirely innocent of wrongdoing. The Court rejected this claim and concluded instead that “[i]t is sufficient that the Government have a compelling interest in preventing an otherwise pervasive societal problem from spreading to the particular context.”
Appellants have, at least arguably, gone further than respondents in
Von Raab,
arguing that “[t]he government’s own documents ... clearly state that the FAA (by far the largest drug testing [Department] component), has a minimal drug ‘problem.’ ” Brief for Appellants at 26.
Cf. Von Raab,
The FAA document was precipitated by a report issued in 1984 by the Department’s Office of Inspector General (“OIG”) undertaken “to determine the adequacy of the [FAA’s Drug and Alcohol Awareness] program in identifying, referring for treatment, and monitoring FAA personnel with drug, alcohol, and other related problems which may affect their job performance.” J.A. at 782. Among the conclusions drawn was that the “FAA has a significant number of employees with drug, alcohol, and other personal problems who have not been identified or tested.” Id. The OIG also concluded that “FAA does not know the seriousness of the problem or number of employees because it does not have an effective drug and alcohol policy and a strongly endorsed employee assistance program.” Id. Accordingly, the OIG recommended that the FAA develop and implement a drug screening and testing program. Id. at 788.
The FAA’s response was mixed. Rather than flatly disputing the OIG’s conclusions, the FAA responded that the OIG report was “unbalanced” because it omitted “positive” information and was based on “unsupported data.” J.A. at 802. Furthermore, the FAA did not deny that some of its employees might be impaired by drug use; it said only that “[f]or the size of the FAA work force” illicit drug use was “relatively” minimal. Id. at 803. Thus, the FAA concluded that the OIG report “would more accurately describe the situation if it was changed from ‘The FAA has ...’to ‘The FAA may have....’ ” Id. at 802. In light of the sharp increase in the number of Departmental employees entering drug *896 counseling programs in the years succeeding the OIG Report (from 16 in 1984 to 138 in 1986), many of whom were FAA employees (45 air traffic controllers in one year), J.A. at 765-66, we cannot accept appellants’ contention that the Department was acting upon no evidence. From this vantage, far from demonstrating the unreasonableness of the Department's action, the Department’s response to the OIG’s report is more logically viewed as a hallmark of responsible management.
Appellants also argue that they were wrongly denied a trial because a genuine issue of fact remained as to the correlation between a positive urinalysis test result and current drug impairment. See Statement of Genuine Issues of Material Fact C, at 3, J.A. at 67. The materiality of such a fact is established, appellants argue, by the Fourth Amendment’s requirement that testing be able to detect only job-impairing drug use.
Although the District Court concluded that the Department “presented proof that drug use, at the level sought by testing generally impairs the normal functioning of employees,”
Dole,
It should initially be noted that the Department stipulated that urinalysis tests do not necessarily measure actual physical or mental impairment.
See
Defendant’s Response to Plaintiffs’ Statement of Genuine Issues of Material Fact at 7, J.A. at 74. Thus, we cannot conclude that any factual disagreement precluded summary judgment. Nor can we conclude that summary judgment was improperly granted as a matter of law. As we explained in
Cheney,
the Supreme Court’s opinions in
Skinner
and
Von Raab
convince us that the failure of a testing technique to measure actual impairment does not necessarily impugn its legitimacy.
Cheney,
In
Skinner,
the Ninth Circuit concluded, as appellants contend herein, that drug testing was constitutionally infirm because of its inability to differentiate drug use that results in on-duty impairment from that which does not.
Railway Labor Executives’ Association v. Burnley,
Von Raab,
where the Court sustained as reasonable the Customs Service’s practice of urine testing those whose post-promotion duties would require carrying a firearm, also strongly suggests that the inability of the testing procedures to differentiate on- and off-duty drug impairment is not determinative of the regime’s constitutionality.
See Cheney,
Appellants also contend that a trial was necessary to determine whether drug use manifests itself in signs of impairment.
See
Statement of Genuine Issues of Materi
*897
al Fact 9, at 2, J.A. at 66. Appellants claim that the detectability of impairment is material to the reasonableness of drug testing because it “directly affects the governmental interest portion of the Fourth Amendment.” Brief for Appellants at 48. We agree that in certain circumstances the detectability of impairment by means other than urine testing may be a relevant consideration in determining the reasonableness of a drug-testing plan. Thus, the
Von Raab
Court credited the fact that it was “not feasible” to subject interdiction agents or other field employees “to the kind of day-to-day scrutiny that is the norm in more traditional office environments.”
Von Raab,
In the context of the present case, appellants have not even argued that it would be practical or feasible to subject covered employees to the sort of day-to-day scrutiny such that testing is unnecessary. We are unable to discern any other materiality in the ascertainment of whether drug users display indicia of impairment. In any event, we could not find that the reasonableness of the Department’s plan “ ‘necessarily or invariably tum[s]’ ” on the existence of less intrusive alternatives to testing.
See Skinner,
In short, appellants have offered no basis on which we can find that summary judgment was improperly granted.
V.
As to appellants’ statutory claims, we agree with the District Court that they “are not significant.”
Dole,
Appellants’ other statutory claim, based on the Administrative Procedure Act, 5 U.S.C. §§ 551,
et seq.
(1982), is hardly more substantial. Appellants argue that the Department acted arbitrarily and capriciously by instituting a drug-testing program that tested for the five above-listed categories of drugs, but not for alcohol, “the drug which is most abused.” Brief for Appellants at 45. It has never been the law that the government is forbidden from addressing a problem unless it addresses all other
*898
problems of similar magnitude.
See, e.g., Williamson v. Lee Optical,
VI.
In their facial challenge to the Department’s implementation of mandatory, random urine testing, appellants have challenged the program in to to. They have specifically called into question the inclusion of only three categories of employees. Although we explicitly requested in our order for supplemental briefing that appellants consider the extent to which the testing of the various job classifications being considered warranted differing treatment than that in Skinner and Von Raab, appellants did not alter their previous course. We have found the privacy interests of employees occupying the three specifically challenged positions outweighed by the Department’s compelling interests in preventing drug use among such personnel. Moreover, we have concluded that the program is supported by sufficiently compelling circumstances to justify the invasions of privacy entailed by conducting such searches without any measure of individualized suspicion. For these reasons, and the others stated above, we hold that the mandatory, suspicionless testing of Category I personnel is reasonable and consistent with the Fourth Amendment, the APA, and the Rehabilitation Act of 1973. Accordingly, the judgment of the District Court is
Affirmed.
Notes
. Order 3910.1 provides for the following types of testing:
(1) random; (2) periodic; (3) reasonable suspicion; (4) pre-employment/pre-appointment; (5) accident or unsafe practice; (6) voluntary; and (7) follow-up. Order 3910.1, Ch. Ill § 3(A), J.A. at 28-29. All covered employees are subject to reasonable suspicion, accident or unsafe practice, and voluntary testing. Only those who participate in a drug rehabilitation and/or abatement program are subject to follow-up testing. Id. § 4(G), J.A. at 30. Periodic testing may be required for certain employees who are already required to be periodically medically examined. Id. § 3(A), J.A. at 29.
. On the governmental side of the Fourth Amendment balance, the Court weighed "whether the search was justified at its inception, whether there are reasonable grounds to suspect work related drug use will be uncovered, whether those subjected to the test ... are only those who in fact occupy critical positions ... and whether use of illegal drugs is likely to impair a critical employment work efficiency."
. The National Air Traffic Controllers Association, exclusive bargaining representative of the approximately 12,000 controllers employed by the Federal Aviation Administration, a subordinate agency of the Department, appeared as an amicus curiae in these proceedings.
. The complete list of covered employees is as follows:
Office of the Secretary: motor vehicle operators.
United States Coast Guard: firefighters, nurses, criminal investigators, vessel traffic controllers, maritime traffic controllers (pilot), electronics mechanics, aircraft electricians, instrument mechanics, metals inspectors, shipwright foremen, transportation equipment operation family, aircraft oxygen equipment mechanics, aircraft engine mechanics, aircraft mechanics, master pilots (ferryboat), chief engineers (ferryboat), oiler (ferryboat and diesel).
Federal Aviation Administration: electronics technicians, civil aviation security specialists, aviation safety inspectors, air traffic control specialists, inspection/flight test pilots, transportation equipment operation family, aircraft mechanics.
Federal Highway Administration: highway safety specialists, motor carrier safety specialists, transportation equipment operation family-
Federal Railroad Administration: industrial hygienists (headquarters), general engineer (field and headquarters), civil engineers (field and headquarters), railroad safety series (field and headquarters), motor vehicle operators, safety engineer (headquarters), mechanical engineers (headquarters), electrical engineers (headquarters), chemical engineer (headquarters), transportation specialists (headquarters).
Saint Lawrence Seaway Development Corporation: lock and dam operators, vessel traffic controllers, transportation equipment operation family.
Office of Inspector General: criminal investigators.
Maritime Administration: • transportation equipment operation family, engineers (watchstander), maritime general maintenance mechanics (deck/engine).
See Order 3910.1 Appendix A. The record does not reveal the allocation of employees in the various covered positions.
. The Department retains the right to remove immediately certain drug-using employees, including employees found to be using illegal drugs on duty or determined to have engaged in certain drug-related offenses. Immediate discharge is also required for certain testing-related violations: refusal to enter or successfully complete a rehabilitation/abatement program, refusal to provide a specimen, and adulteration or substitution of a specimen. See Order 3910.-1, Ch. VI, § 1(A) — (F), J.A. at 45.
. While it is not clear which aspects of the District Court's order appellants intended to bring forward on appeal,
compare
Brief for Appellants at 8 n. 9 ("Appellants seek appeal of the district courts [sic] dismissal only as to random, periodic, and accident or unsafe practice drug testing.”)
with
Supplemental Brief for Appellants at 1 n. 2 ("The appellees [sic] have challenged only random, and accident or unsafe practice testing."), in their most recent submission appellants appear to indicate that their challenge is directed exclusively at random testing,
id. But see id.
at 7 (Random testing is “the principle [sic] issue of the case presently before the Court.”). We consider only the random aspect of the Department’s plan, both because it was the only aspect appellants challenged in their complaint,
see
Complaint for Declaratory and Injunctive Relief at 2, J.A. at 2, and because
*889
it was the only aspect passed upon by the District Court,
see
. This contention is belied by the fact that the Order recommends testing only for those who occupy jobs "sensitive” from the standpoint of security, health, and safety.
. The Department deemed the following positions as those having the necessary impact on public health, safety, or national security to warrant their inclusion in Category I: motor vehicle operators; criminal investigators; vessel traffic controllers; air traffic controllers; mechanics (general maintenance, electronic, instrument, aircraft oxygen equipment, aircraft engine); aircraft electricians; inspectors (metals, aviation, railroad safety series); transportation equipment operation family; pilots (master, inspection/flight test); civil aviation security specialists; safety specialists (highway, motor carrier, railroad, safety engineer); engineers (general, civil, mechanical, electrical, chemical); firefighters; nurses; shipwright foremen; chief engineers (ferryboat); oiler (ferryboat and die *890 sel); electronics technicians; industrial hygienists; transportation specialists; lock and dam operators.
. Order 3910.1 requires that each Category I employee "have an equal statistical chance for being selected for testing within a specified time frame.” Order 3910.1, Ch. III, § 4(A), J.A. at 29.
. While appellants have not argued that testing is unnecessary because of the availability of less intrusive alternatives, the sole mechanic-affiant on which they rely asserted that each mechanic’s work is reviewed by a "Quality Assurance Inspector" or "another certified mechanic." Even if the assertion rises to the level of a properly submitted argument, it would fail for essentially the same reasons we rejected the claim in
Cheney
that drug testing was unnecessary in light of proscriptions already in force.
See Cheney,
at 610-11;
see also Skinner,
. There are three levels of security classification: confidential, secret, and top secret. See 47 Fed.Reg. 14,874 (Apr. 6, 1982).
. These cases appear fully consistent with the line of cases under section 1983 which place upon the defendant the burden of establishing the
defense
of qualified immunity.
See, e.g., Anderson v. Creighton,
. In light of this conclusion, it is not surprising that in their supplemental briefing appellants abandoned their earlier contention that "[t]he mere assertion of a societal drug problem is not reason enough to abandon" requirement of particularized suspicion. Brief for Appellants at 34.
