MEMORANDUM AND ORDER
These lawsuits arise out of injuries allegedly sustained by plaintiffs or their decedents as a result of exposure to radiation that originated in the luminous dials of aircraft instruments. The injured individuals encountered these instruments in the course of their employment with Aircraft Instrument and Development, Inc. (AID), whose business involved the repair and overhaul of such devices. Plaintiffs assert claims, grounded in a variety of tort theories, against the United States, for whom many of the instruments were manufac *881 tured and who eventually disposed of many of them as surplus, against eight corporations who manufactured the instruments, and against fourteen corporations and one individual who supplied the instruments to the AID plant.
With regard to the Court’s jurisdiction over the subject matter of this case, plaintiffs assert that their claims against the twenty diverse defendants are authorized by 28 U.S.C. § 1332(a)(1), that their claims against the United States are authorized by 28 U.S.C. § 1346(b), and that their claims against the two nondiverse defendants may be heard pursuant to jurisdiction pendent to their claims against the United States. A number of defendants contend that the exercise of pendent party jurisdiction is not proper in this instance, and that the presence of the nondiverse defendants thus destroys this Court’s power to hear the entire case; they have accordingly moved to dismiss the claims against them. As explained below, the Court concludes that it is indeed empowered to hear the claims asserted against the nondiverse defendants, and that defendants’ motions must be denied.
A necessary threshold question is whether this Court’s assertion of jurisdiction over the nondiverse defendants falls within the outer limits of federal judicial power established by Article III, Section 2 of the United States Constitution. Since plaintiffs’ claims against the United States are obviously permitted by the Constitution, both as a case “arising under .. . the Laws of the United States” and as a controversy “to which the United States shall be a Party,” that question would seem to have been answered in
United Mine Workers v. Gibbs,
Pendent jurisdiction, in the sense of judicial power, exists whenever there is a claim “arising under [the] Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their authority ...,” US Const. Art III, § 2, and the relationship between that claim and the state claim permits the conclusion that the entire action before the court comprises but one constitutional “case.” The federal claim must have substance sufficient to confer subject matter jurisdiction on the court.. . . The State and Federal claims must derive from a common nucleus of operative fact. But if, considered without regard to their federal or state character, a plaintiff’s claims are such that he would ordinarily be expected to try them all in one judicial proceeding, then, assuming substantiality of the federal issues there is power in federal courts to hear the whole.
To be sure, the present case is distinguishable from
Gibbs
in at least two respects: it involves the addition of a party, rather than the mere addition of a claim, and its anchor claim is jurisdictionally grounded in 28 U.S.C. § 1346(b) rather than in 28 U.S.C. § 1331. But there are a number of reasons why
Gibbs
should be viewed as setting forth the general Article III limits on pendent party jurisdiction. To begin with, the large number of cases in which the various federal courts have adopted one form or another of pendent party jurisdiction by analogy to
Gibbs
have either ex
*882
pressly or implicitly viewed that case as establishing the constitutional parameters of the doctrine.
See, e.g., Transok Pipeline Co. v. Darks,
The conclusion that nothing in Article III, Section 2 prevents this Court from entertaining plaintiffs’ claims against the two nondiverse defendants does not end the inquiry. The jurisdictional power of the federal courts may be limited by Congress as well as by the Constitution, and it is well established that Congress has not always chosen to extend that power to the full extent permissible.
Compare, e.g., Strawbridge v. Curtis,
Of course,
Aldinger
and
Kroger
both demonstrate that the presumption of authorization may be overcome by concrete evidence of contrary congressional intent. As Judge O’Connor demonstrated in his
Pearce
opinion, however, it is difficult to discern either in 28 U.S.C. § 1346(b) or in the sub
*883
stantive provisions of the Federal Tort Claims Act any congressional disinclination to allow the federal courts to entertain claims of the sort asserted here.
Since federal district courts have exclusive jurisdiction over tort claims against the United States, if the position urged by defendants were adopted here the obvious consequence would be that plaintiffs, if they wished to recover against both the United States and the Kansas defendants, would have to file two lawsuits: one here and one in state court. Because Kansas has abolished joint and several liability in negligence and strict liability actions,
see Kennedy v. City of
Sawyer,
Another plausible outcome, of course, is that plaintiffs, to avoid the burdens of duplicitous litigation and the hazards of inconsistent results, would simply abandon their claims against the Kansas defendants or against the United States. This unpalatable “solution” does not comport, however, with the plain congressional intent that even the smallest claims against the United States be heard, and in distinct contrast to the situations in Aldinger and Kroger, plaintiffs cannot escape their dilemma by the simple expedient of bringing their lawsuits in state court. The Aldinger holding “encourages” plaintiffs to bring civil rights suits against local governments in state court: that is not unjust. The Kroger holding “encourages” plaintiffs to bring simple state law personal injury suits in state court: that is not unjust. The holding urged in this case by defendants would “encourage” those injured by the joint malfeasance of a federal employee and a private individual to abandon their claims against one of the tortfeasors. That would be manifestly unjust, and the Court does not doubt that it was the spectre of such injustice that led the Aldinger court, although it held improper the particular form of pendent party jurisdiction before it, to declare that:
*884 [Other] statutory grants and other alignment of parties and claims might call for a different result. When the grant of jurisdiction to a federal court is exclusive, for example, as in the prosecution of tort claims against the United States under 28 U.S.C. § 1346, the argument of judicial economy and convenience can be coupled with the additional argument that only in a federal court may all of the claims be tried together.
Defendants argue that an implicit congressional intent to preclude pendent party jurisdiction under Section 1346(b) can be found if that jurisdictional statute is construed
in pari materia
with Section 1332(a)(1) and its requirement of complete diversity. It must be remembered, however, that Congress’ imposition of the complete diversity rule is not express; it is inferred, rather, from Congress’ silence that it acquiesces in judicial interpretations of Section 1332(a)(1) and its predecessors.
Kroger, supra,
IT IS ACCORDINGLY ORDERED that defendants’ motion to dismiss for want of subject matter jurisdiction be denied.
Notes
. Defendants make much of the fact that the Court of Appeals for the Ninth Circuit, in rejecting the very exercise of jurisdiction at issue here, has declared that “our difficulty with pendent party jurisdiction is a constitutional one under Article III,”
Ayala v. United States,
. The Court does not mean to imply that considerations of practicality and judicial economy are in themselves inevitably sufficient to support the entertainment of claims that lack an independent basis of federal subject matter jurisdiction: Aldinger and Kroger belie any such notion. But neither of those cases suggests that practical considerations are somehow irrelevant, and neither case’s holding raises the kinds of fairness questions discussed below.
. The Court does not accept plaintiffs’ contentions that the Eurich-Albertson doctrine extends to parties who could not have been joined as defendants.
