Lаwrence Antelope is a convicted sex offender who shows promise of rehabilitation. The terms of his supervised release offer him treatment — -but at a price he is not willing to pay. Antelope has repeatedly refused to incriminate himself as part of his sex offender treatment. He declines to detail his sexual history in the absence of any assurance of immunity because of the risk that he may reveal past crimes and that his admissions could then be used to prosecute him. In response, the government has twice revoked his conditional liberty and sent him to prison. The case he now brings requires us to decide whether the government’s actions violated his Fifth Amendment right against compelled self-incrimination. Because the Constitution does not countenance the sort of government coercion imposed on Antelope, and *1131 because his claim is ripe for adjudication, we reverse the judgment of the district court.
We decide also Antelope’s challenge to the release term prohibiting him from possessing “any pornographic, sexually oriented or sexually stimulating materials,” which we vacate and remand, as well as his challenge to the term prohibiting him from access to “any ‘on-line computer service,’ ” which we affirm.
BACKGROUND
The course of events leading to this appeal began when Lawrence Antelope joined an Internet site advertising “Preteen Nude Sex Pics” and started corresponding with someone who, unbeknownst to Antelope, was an undercover law enforcement agent. The sting operation proved fruitful when Antеlope ordered a child pornography video over the Internet. Federal agents arranged a controlled delivery, delivered the video, and then promptly arrested Antelope.
Caught red-handed, Antelope pleaded guilty to possessing child pornography in violation of 18 U.S.C. § 2252A(a)(5)(B) and was initially sentenced to five years probation. One of the probation terms required Antelope to participate in the Sexual Abuse Behavior Evaluation and Recovery program (“SABER”), which would subject him to mandatory “periodic and random polygraph examinations.” At sentencing, Antelope raised a Fifth Amendment challenge to this requirement, but was told by the district judge that the “use of that information ... is, I think, subject to the privilege between the counselor and the patient.” Antelope was also prohibited from “possess[ing] any pornographic, sexually oriented or sexually stimulating materials” and from “possess[ing] or us[ing] a computer with access to any ‘on-line computer service’ at any location ... without the prior written approval of the probation department.” Both Antelope and the government promptly appealed the sentence.
While the appeal was pending, the district court revoked Antelope’s probation for failure to comply with several probation conditions, including the requirement that he submit to polygraph examinations as part of the treatment program. The district judge re-imposed probation with an additional six months of electronic monitoring and warned that Antelope’s continued refusal to submit to the polygraph would result in his incarceration. Antelope appealed this ruling as well.
Immediately following this ruling, Antelope filed a motion in the district court seeking to clarify whether the order included immunity from the use of Antelope’s statements made in compliance with SABER to prosecute him. The district court never ruled on this motion, later dismissing it as moot.
While these appeals were pending, the district court again found Antelope in violation of probation. At the probation revocation hearing, Roger Dowty, Antelope’s counselor at the sex treatment program, testified that Antelope had failed to complete SABER’s sexual history autobiography assignment and “full disclosure polygraph” verifying his “full sexual history.” Dowty explained that Antelope had been told that any past criminal offenses he revealed in the course of the program could be released to the authorities. Dowty also testified that he was under a legal obligation to turn over information regarding offenses involving victims under eighteen. Antelope argued that the autobiography and full disclosure polygraph requirements violated his Fifth Amendment right, expressed his desire to continue treatment, and sought immunity for statements made in compliance with the program. The district court rejected his argument, ruling that the fact of probation *1132 nullifies any Fifth Amendment right Antelope might otherwise have to decline to “reveal[] information that may incriminate him,” and sentenced him to 30 months in prison. Antelope appealed a third time.
All three appeals were consolidated for appellate review, and this court issued a decision reversing in part and remanding for resentencing. The court declined to reach Antelope’s First and Fifth Amendment claims.
See United States v. Antelope,
Following remand, Antelope was resen-tenced to twenty months incarceration, followed by three years of supervised release. The district court again imposed the contested conditions as terms of his supervised release. Antelope once again objected, but the court ruled that the objection was not ripe, and would not be ripe until Antelope was “prosecuted or subject to prosecution” for additional crimes. Antelope appealed once more. This fourth appeal is one of the two directly before us now.
Shortly after he was resentenced, Antеlope finished serving his prison term and was released under supervision. Antelope reasserted his desire for treatment but continued to refuse to reveal his full sexual history absent an assurance of immunity. When Antelope appeared at a release revocation hearing, he yet again argued the merits of his Fifth Amendment claim. The district judge reiterated his belief that Antelope’s admissions would be protected by an “absolute privilege under Montana law between a counselor, psychologist and the patient”; asserted that “given the fact that[Antelope has] not said anything yet, ... everything is premature [a]nd until this judicial proceeding, where he’s compelled to testify, it seems to me, ... you don’t have any legal arguments to be making that are meritorious in my view today”; and declined to rule on whether Aitelope’s admissions would be protected by use immunity, apparently on ripeness grounds. The district judge suggested that Antelope’s proper course would be to “assert[ ] his privilege when he goes to see Mr. [Dowty, the counselor,] and say[], I am doing this because I’m ordered to do it. I am not doing it voluntarily, it’s a court order, and I do it only because if I don’t do it I’m going to end up in jail.”
The district court sentenced Antelope to an additional ten months in prison and twenty-six months of supervised release with the same conditions. Antelope appealed a final time, and we consider the issues presented by his consolidated fourth and fifth appeals.
DISCUSSION
I. RIPENESS
We turn first to the government’s argument that Antelope’s Fifth Amendment claim is not yet ripe for review. The constitutional compоnent of ripeness is a jurisdictional prerequisite.
Cal. Pro-Life Council, Inc. v. Getman,
To determine whether Antelope suffered an injury in fact, we must identify “an invasion of a legally protected interest which is (a) concrete and particularized; and (b) actual or imminent, not conjectural or hypothetical.”
Id.
at 1085. Here, Antelope’s appeal centers around his claimed right to be free of unconstitutional compulsion: Under his theory, the government violated his Fifth Amendment
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right when it conditioned his probation and supervised release on the submission of a sexual autobiography that we may assume would havе revealed prosecutable offenses. From Antelope’s perspective, in whose shoes we stand when deciding this threshold issue of justiciability, he has already suffered the very serious and non-hypothetieal injury of imprisonment after he invoked his Fifth Amendment right. In other words,”[i]f his legal argument is correct, he has already suffered constitutional injury.”
United States v. Purvis,
II. THE FIFTH AMENDMENT RIGHT AGAINST SELF-INCRIMINATION
Having determined the question justicia-ble, we address next Antelope’s claim to the Fifth Amendment privilege against compelled self-incrimination, an issue that has dominated the five appeals Antelope has filed throughout the course of these proceedings. Antelope contends that the Fifth Amendment restrains the government from forcing him to admit prior wrongdoing unless his statements are protected by use and derivative use immunity in accordance with
Kastigar v. United States,
We ground our analysis in well-settled principles, starting with the Constitution. The Fifth Amendment guarantees that “[n]o person ... shall be compelled in any criminal case to be a witness against himself.” U.S. Const. amend. V. This right remains available to Antelope despite his conviction.
See Minnesota v. Murphy,
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To establish his Fifth Amendment claim, Antelope must prove two things: (1) that the testimony desired by the government carried the risk of incrimination,
see Murphy,
A. Incrimination
The Fifth Amendment privilege is only properly invoked in the face of “a real and appreciable danger of self-incrimination.”
McCoy v. Comm’r,
Instead, because the Fifth Amendment’s . self-incrimination clause was designed “to effect [the] practical and'beneficent purpose” of preventing inquisitorial interrogation,
Brown v. Walker,
This is not to say, however, that the prosecutorial sword must actually strike or be poised to strike. To the contrary, an individual “need not incriminate himself in order to invoke the privilege,”
McCoy,
In this case, Antelope’s risk of incrimination was “real and appreciable.” The SABER program required Antelope to reveal his full sexual history, including all past sexual criminal offenses. Any attempt to withhold information about past offenses would be stymied by the required complete autobiography and “full disclosure” polygraph examination. Based on the nature of this requirement and Antelope’s steadfast refusal to comply, it seems only fair to infer that his sexual autobiography wоuld, in fact, reveal past sex crimes. Such an inference would be consistent with the belief of Roger Dowty, Antelope’s SABER counselor, who suspects Antelope of having committed prior sex offenses. The treatment condition placed Antelope at a crossroads — comply and incriminate himself or invoke his right against self-incrimination and be sent to prison. We therefore conclude that Antelope’s successful participation in SABER triggered a real danger of self-incrimination, not simply a remote or speculative threat.
We have no doubt that any admissions of past crimes would likely make their way into the hands of prosecutors. Dowty made clear that he would turn over evidence of past sex crimes to the authorities. As he explained at Antelope’s probation revocation hearing, Dowty has reported his clients’ crimes in the past and his reports have led to additional convictions. The SABER release form, which Antelope signed, specifically authorizes Dowty to make such reports. 2 And, were Antelope to reveal any crimes involving minors, Montana law would require Dowty to report to law enforcement. See Mont.Code Ann. §§ 41-3-201 to -202 (2003) (requiring counselors who suspect child abuse to report to the authorities).
In sum, the evidence shows that, setting the privilege aside, Antelope would have to reveal past sex crimes to the SABER counselor; the counselor would likely report the incidents to the authorities, who could then use Antelope’s admissions to prosecute and convict him of the additional crimes. Viewed in this light, very little stands between Antelope’s participation in SABER and future prosecution. When he invoked his Fifth Amendment right, Antelope’s situation presented a “real and appreciable danger,” not a “remote, unlikely, or speculative” risk.
See McCoy,
B. Compulsion
The second prong of the self-incrimination inquiry asks whether the government has sought to “impose substantial penalties because a witness elects to exercise his Fifth Amendment right not to give incriminating testimony against himself.”
Cunningham,
In
McKune,
a plurality of four justices concluded that the penalties faced by the inmate in that case, Robert Lile, for refusing to make disclosures required under Kansas’s Sexual Abuse Treatment Program (“SATP”) did not amount to compulsion under the Fifth Amendment.
Id.
at 29,
The plurality rejected Lile’s argument that his case was controlled by “the so-called penalty cases” like
Garrity v. New Jersey,
In her concurrence, Justice O’Connor explained that penalties severe enough to offend the Fifth Amendment privilege include: “termination of employment, [
Uniformed Sanitation Men Ass’n, Inc. v. City of New York,
Significantly, Justice
O’Connor did
not attempt to establish the governing standard for all cases, noting that she did not “need [to] resolve this dilemma[of setting forth a comprehensive theory of the self-incrimination privilege] to make
[her]
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judgment in”
McKune. Id.
at 54,
Although Justice O’Connor agreed with the plurality that Lile’s “reduction in incentive level, and ... corresponding transfer from a medium-security to a maximum-security part of the prison” were not penalties “sufficiently serious to compel his testimony,” Justice O’Connor said that she “d[id] not agree with the suggestion in the plurality opinion that these penalties could permissibly rise to the level of ... penalties [like] longer incarceration and execution[whieh] are far greater than those we have already held to constitute unconstitutional compulsion.”
Id.
at 50, 52,
I believe the proper theory should recognize that it is generally acceptable to impose the risk of punishment, however great, so long as the actual imposition of such punishment is accomplished through a fair criminal process.... Forcing defendants to accept such consequences seems to me very different from imposing penalties for the refusal to incriminate one-self that go beyond the criminal process and appear, starkly, as government attempts to compel testimony ....
Id.
at 53,
Thus, under Justice O’Connor’s opinion in McKune, the compulsion inquiry does not dispositively turn on the status of the person claiming the Fifth Amendment privilege or on the severity of the penalty imposed, although these factors may bear on the analysis. Instead, the controlling issue is the state’s purpose in imposing the penalty: Although it may be acceptable for the state to impose harsh penalties on defendants when it has legitimate reasons for doing so consistent with their conviction for their crimes of incarceration, it is a different thing to impose “penalties for the refusal to incriminate oneself that go beyond the criminal process and appear, starkly, as government attempts to compel testimony.” Id.
Applying these principles here, we reject that the state could sanction Antelope for his self-protective silence about conduct that might constitute
other
crimes. We do not doubt that SABER’s policy of requiring convicted sex offenders to give a sexual history, admitting responsibility for past misconduct to participating counselors, serves an important rehabilitative purpose.
See, e.g., id.
at 33,
Justice O’Connor made clear in her
McKune
conсurrence that she would not have found a penalty of “longer incarceration” such as that here to be constitutionally permissible.
Id.
at 52,
Our holding comports with the case authority in our sister circuits which suggests that the conditions must not only be sufficiently coercive, but also more than merely hypothetical. When probation and supervised release terms are at issue, a court must determine whether the alleged Fifth Amendment problem truly implicates the defendant’s conditional liberty. In
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United States v. Lee,
The First Circuit likewise faced a Fifth Amendment challenge to a supervised release condition imposing a polygraph exam requirement in
United States v. York,
Although the First and Third Circuits found an interpretative way around the Fifth Amendment issue, the path of constitutional avoidance taken in York and Lee is unavailable here. Whether Antelope’s supervised release is actually conditioned on his participation in SABER is a question whose answer is certain. Antelope has already suffered repeated revocation of his conditional liberty as a result of invoking his Fifth Amendment right. And, we have no doubt that Antelope’s loss of liberty was as “substantial” a penalty as, if not more serious than, the ones imposed upon the litigants in the line of cases from Spevack to Cunningham — and totally unlike the mere transfer from one part of a prison to another, as in McKune.
Here, the district court tried to walk a fine line between the government’s absolutist view — -that full disclosure without immunity was a condition of release — and Antelope’s view — that full disclosure without Fifth Amendment protection was a no-win proposition. Although this effort was laudable and the district court was sensitive in recognizing Antelope’s Catch-22 predicament, its ruling left Antelope in legal limbo. Ultimately, the district court revoked Antelope’s supervised release as a result of his refusal to disclose his sexual history without receiving immunity from prosecution. Because the government and district court have consistently refused to “recognize! ] that the required answers may not be used in a criminal proceeding” against Antelope,
Murphy,
C. Antelope’s Entitlement to Kasti-gar Immunity
The nature of Antelope’s entitlement to immunity for incriminating state
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ments is subject to some dispute between the parties. We find it appropriate to resolve their disagreement because the issue is intimately bound up with the resolution of the merits of Antelope’s Fifth Amendment claim. The government argues that Antelope has no entitlement to an assurance of immunity before he makes incriminating statements.
See Kastigar,
As the Supreme Court has explained, adoption of the government’s position would all but eviscerate the protections the self-incrimination clause was designed to provide.
See, e.g., Turley,
That this protection should be the law is only logical; “the failure to assert the privilege will often forfeit the right to exclude the evidence in a subsequent ‘criminal case.’ ”
Id.
(citing
Murphy,
In the face of the vast weight of precedent
to the contrary, see, e.g., Murphy, 465
U.S. at 429-40,
Chavez
was a civil rights suit filеd under 42 U.S.C. § 1983 by a plaintiff alleging that a police officer who aggressively questioned him violated his Fifth Amendment right. Six justices agreed with the defendant police officer that the cause of action premised on a Fifth Amendment violation could not survive summary judgment.
See Chavez,
Were Antelope to turn the tables and sue the government, Chavez would direct our inquiry to the “core constitutional right” — and, in such a posture, the government’s argument might well prevail. But here, where Antelope is on the defensive, Fifth Amendment case law offers him protection beyond what the Chavez plurality called the “core” right. Thus, whether we describe our decision as arising out of a “prophylactic” or “constitutional” rule, the same result obtains: Antelope followed the appropriate course of action by refusing to answer the sexual history question until he was assured that his answers would be protected by immunity. 5
III. THE PROHIBITION ON “ANY PORNOGRAPHIC MATERIALS”
Antelope also challenges as unconstitutionally vague the provision of his supervised release prohibiting him from possessing “any pornographic, sexually oriented or sexually stimulating materials.” In
United States v. Guagliardo,
The government contends that “sexually oriented or sexually stimulating” should be
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read to define “pornographic.” We decline to adopt this grammatically unnatural reading. Thе release term explicitly lists three types of materials that Antelope may not possess: “any pornographic, sexually oriented or sexually stimulating materials.” Because the condition imposed on Antelope suffers from the same defect as the one struck down in
Guagliardo,
we vacate and remand for clarification. Upon reconsideration, the district court may take note of the condition imposed in
United States v. Rearden,
IY. THE PROHIBITION ON “ACCESS TO ANY ON-LINE COMPUTER SERVICE”
Antelope’s final argument challenges as overbroad the supervised release term prohibiting him from “possessing] or us[ing] a computer with access to any ‘online computer service’ at any location (including employment) without the prior written approval of the probation department.”
As Antelope acknowledges, we recently rejected precisely such a challenge in Rearden. See id. at 620-21. He argues, however, that his case should be treated differently because his crime involved less use of the Internet and was less severe than Rearden’s. Although there is some appeal to this nuance, the Internet was nevertheless essential to the commission of Antelope’s crime: He first contacted the federal agents through joining a child pornography-oriented online group. Added to the evidence suggesting that Antelope’s crime was one step on a path towards more serious transgressions, there is enough to justify the imposition of the term “to protect the public from further crimes of the defendant” and “to afford adequate deterrence to criminal conduct.” 18 U.S.C. § 3553(a)(2)(B) & (C). We affirm the imposition of this provision оf Antelope’s supervised release.
CONCLUSION
Accordingly, the decision of the district court revoking Antelope’s supervised release because he invoked his Fifth Amendment rights in connection with the SABER program is REVERSED, the imposition of the release term prohibiting access to “any pornographic materials” is VACATED and REMANDED, and the release term prohibiting “access to any ‘on-line computer service’ ” is AFFIRMED.
Notes
. Abiding by the rule that when "no single rationale explaining the result enjoys the assent of five Justices, the holding of the Court may be viewed as that position taken by those Members who concurred in the judgments on the narrowest grounds,”
Marks v. United States,
. The SABER release form provides: "I hereby allow SABER to report to the appropriate authorities ... any and all information concerning my behavior which is related to sexual offending.”
. Indeed, the
McKune
plurality, even with its more stringent standard, might here hold that the Fifth Amendment's self-incrimination clause was violated, given that the
McKune
plurality declared that Kansas had not used the information gathered in SATP for prose-cutorial purposes,
id.
at 34,
. The Court’s
pre-McKune
decision in
Murphy
is consistent. In
Murphy
the defendant challenged a condition of his probation requiring him to "be truthful with [his] probation officer ‘in all matters' ” or “return to the sentencing court for a probation revocation hearing,” arguing that this condition uncon-, stitutionally forced him to choose between making self-incriminating disclosures or returning to prison.
. The scope of the immunity should be consistent with the Supreme Court’s opinion in
Kastigar,
