LOGAN, Circuit Judge.
James T. Schell appeals the trial court’s judgment finding him a dangerous special offender within the meaning of 18 U.S.C. § 3575, and sentencing him to two consecutive ten year terms. On appeal the issues are (1) whether the trial court’s findings were statutorily and constitutionally sufficient; (2) whether sentencing Schell as a dangerous special offender violated his Eighth Amendment right against cruel and unusual punishment; (3) whether the statute’s definition of “dangerous” is unconstitutionally vague; and (4) whether using a preponderance of the evidence standard to determine if Schell is a dangerous special offender, as the statute authorizes, violated Schell’s due process rights.
In October 1979 Schell escaped from the Southeast Regional Correctional Facility in Fort Scott, Kansas. He was later recaptured and charged with escape from prison, a violation of 18 U.S.C. § 751(a). Before trial, in July 1980, Schell again escaped, this time from the jail where he was confined awaiting trial. When Schell was recaptured he was charged with a second escape from prison. The judge consolidated the two escape cases for trial. Before trial the government filed a notice stating that it reasonably believed Schell was a dangerous special offender. See 18 U.S.C. § 3575(a). After Schell pleaded guilty to both escape [674]*674charges, the trial court held a hearing solely to determine whether Schell was a dangerous special offender.
Section 3575 requires a trial court to increase a defendant’s sentence beyond the statutory limits of the felony he has committed if the court finds that the defendant is a “dangerous special offender.” The trial court found that Schell’s previous criminal record met the “special offender” requirements of section 3575(e)(1).1 Based upon its examination of the presentence report and testimony presented by both sides, the court found that Schell should be confined for a period longer than that provided for the felony of escape in order to protect the public from his future criminal conduct; thus, he was a “dangerous” special offender.2 The trial court then sentenced Schell to two consecutive ten year terms. Schell appeals his sentence, as authorized by 18 U.S.C. § 3576.
I
Schell contends the trial court’s findings were neither statutorily nor constitutionally sufficient. He first argues that because Congress enacted section 3575 in order to bring about stiffer sentences for participants in organized crime groups, section 3575 requires a finding that he is such a person. Because no evidence was presented linking him to organized crime, Schell argues the trial court’s determination that he is a dangerous special offender violated his due process rights. However, although the primary objective of section 3575 was to combat organized crime, neither the legislative history, see H.R.Rep.No. 1549, 91st Cong., 2d Sess. (1970), reprinted in 1970 U.S.Code Cong. & Ad.News 4007-91, nor the language of the section limits its application to organized crime figures. See United States v. Bailey, 537 F.2d 845, 846-47 (5th Cir. 1976), cert. denied, 429 U.S. 1051, 97 S.Ct. 764, 50 L.Ed.2d 767 (1977).
Schell also contends that in determining whether he is dangerous to society, the trial court should have considered time remaining to be served on Schell’s prior convictions. At the time the trial court found Schell to be a dangerous special offender, he had yet to serve a ten year term in federal prison for a bank robbery, a fifteen to thirty-five year term in Texas for armed robbery, a five to thirty-five year term in Texas for murder, and a fifteen year term in Arkansas for aggravated robbery. Schell argues that because these sentences might require him to serve ninety-five years in prison,3 he cannot be considered to be “dangerous.”
Section 3575(f) does not explicitly require a trial court to calculate whether a defendant’s probable release is imminent enough to pose a danger to society. Any attempt to make such a calculation would ensnarl the court in the complexities and uncertainties of the sentencing and parole procedures of other jurisdictions. This consideration militates against reading such a requirement into the statute. We think a defendant’s character and past criminal conduct are the essential factors the court must consider in determining whether a defendant is dangerous within the meaning of section 3575.
[675]*675Schell also contends that the court erred in relying on the same evidence — pri- or convictions — to find that he is both a special offender and dangerous. Schell argues that although his prior convictions are sufficient to justify finding him a special offender, additional evidence is necessary to find him dangerous. Although the fact of prior convictions alone may not support a finding of dangerousness, the court was entitled to rely on both the fact and the nature of Schell’s prior convictions, together with other evidence of Schell’s character and prior conduct. United States v. Warme, 572 F.2d 57, 62 (2d Cir.), cert. denied, 435 U.S. 1011, 98 S.Ct. 1885, 56 L.Ed.2d 393 (1978). In announcing its decision, the trial court referred to the nature of Schell’s previous felony convictions and to the testimony of two women who helped him escape or accompanied him. The women testified to his use of a gun in one escape and to his commission of several robberies while in their company. The court found that these facts “show a pattern and history of violence and anti-social behavior on the part of the defendant and a patent lack of concern for the lives of others.” R. III, 105.
II
Schell contends that by sentencing him to serve two consecutive ten year terms, the trial court violated his Eighth Amendment right against cruel and unusual punishment. Schell appears to argue that the Eighth Amendment requires that before sentencing a defendant a trial court must consider the time the defendant is already scheduled to serve. Because he was already scheduled to serve up to ninety-five years, Schell argues that the additional sentence of twenty years was cruel and unusual punishment.
This argument is meritless. Taken to its extreme, it would require us to find that virtually any sentence, however short, becomes cruel and unusual punishment when the defendant was already scheduled to serve lengthy sentences for prior convictions. The Eighth Amendment does not prohibit a state from punishing defendants for the crimes they commit; the amendment prohibits a sentence only if it is grossly disproportionate to the severity of the crime. Rummel v. Estelle, 445 U.S. 263, 271, 100 S.Ct. 1133, 1137, 63 L.Ed.2d 382 (1980). In suggesting that “the length of the sentence actually imposed” for an undeniably serious crime “is purely a matter of legislative prerogative,” id. at 274, 100 S.Ct. at 1139, the Rummel decision puts into question whether any sentence short of death for felony convictions of the sort involved here is cruel and unusual punishment. Cf. Enmund v. Florida, - U.S. -, 102 S.Ct. 3368, 73 L.Ed.2d 1140 (1982) (death penalty unconstitutional applied to felony murder defendant who did not kill or intend to kill).
Ill
Schell claims that section 3575(f)’s definition of “dangerous” is unconstitutionally vague. That Congress might have chosen more precise language does not render a statute unconstitutionally vague, United States v. Powell, 423 U.S. 87, 94, 96 S.Ct. 316, 320, 46 L.Ed.2d 228 (1975), as long as people of ordinary intelligence need not “guess at its meaning and differ as to its application,” Connally v. General Construction Co., 269 U.S. 385, 391, 46 S.Ct. 126, 127, 70 L.Ed. 322 (1926). In this case the issue is whether trial judges who must administer section 3575 can readily apply the concept of dangerousness. In bail and sentencing proceedings, trial judges routinely consider a defendant’s propensity to engage in future criminal conduct and the potential danger a defendant poses to society. The concept of dangerousness as defined in section 3575 merely articulates considerations underlying any bail or sentencing decision. We therefore agree with the Fourth, Fifth, Sixth, and Seventh Circuits, which have held that “dangerous” is not unconstitutionally vague. See United States v. Williamson, 567 F.2d 610, 613 (4th Cir. 1977); United States v. Bowdach, 561 F.2d 1160, 1175 (5th Cir. 1977); United States v. Neary, 552 F.2d 1184, 1194 (7th Cir.), cert. denied, 434 U.S. 864, 98 S.Ct. 197, 54 L.Ed.2d 139 (1977); United States v. Stewart, 531 F.2d [676]*676326, 336 (6th Cir.), cert. denied, 426 U.S. 922, 96 S.Ct. 2629, 49 L.Ed.2d 376 (1976).
IV
Finally, Schell alleges that a higher standard of proof than the “preponderance of the evidence” standard called for by section 3575(b) is necessary to protect his liberty interest under the Due Process Clause.
A standard of proof allocates the risk of error between the litigants and indicates the relative importance of the ultimate decision. Addington v. Texas, 441 U.S. 418, 423, 99 S.Ct. 1804, 1808, 60 L.Ed.2d 323 (1979). For example, the “proof beyond a reasonable doubt” standard implies that the party on whom that burden is imposed should bear almost the entire risk of error. Id. at 423-24, 99 S.Ct. at 1808. In contrast, the “preponderance of the evidence” standard indicates that the litigants should share equally the risk of error, id. at 423, 99 S.Ct. at 1808, because the interests at stake have roughly equal societal importance. Santosky v. Kramer, 455 U.S. 745, 787, 102 S.Ct. 1388, 1411-12, 71 L.Ed.2d 599 (1982) (Rehnquist, J., dissenting). Proof by “clear and convincing” evidence is an intermediate standard generally used in civil cases involving allegations of fraud or some other quasi-criminal wrongdoing, or when particularly important individual rights are involved. Addington, 441 U.S. at 424, 99 S.Ct. at 1808. Although it may be difficult to articulate the subtle differences between these standards of proof, and equally difficult to know how they ultimately affect decisionmaking, testing the evidence presented by a given standard of proof “is more than an empty semantic exercise.” Id. at 425, 99 S.Ct. at 1809 (quoting Tippett v. Maryland, 436 F.2d 1153, 1166 (4th Cir. 1971) (Sobeloff, J., concurring in part and dissenting in part), cert. dismissed sub nom. Murel v. Baltimore City Criminal Court, 407 U.S. 355, 92 S.Ct. 2091, 32 L.Ed.2d 791 (1972)). In cases involving individual rights, whether criminal or civil, the standard of proof reflects the value society places on that right. Id.
Much of the problem in determining what standard of proof is constitutionally required for sentencing pursuant to section 3575 derives from trying to characterize the “dangerous special offender” proceeding. If it is a proceeding that determines guilt or innocence under a separate criminal charge, we must require proof beyond a reasonable doubt. See In re Winship, 397 U.S. 358, 90 S.Ct. 1068, 25 L.Ed.2d 368 (1970) (“proof beyond a reasonable doubt [required] of every fact necessary to constitute the crime with which [the defendant] is charged”). If it is a normal sentencing proceeding, we must uphold a preponderance standard. See Gardner v. Florida, 430 U.S. 349, 358 & n.9, 97 S.Ct. 1197, 1205 & n.9, 51 L.Ed.2d 393 (1977) (plurality opinion) (although sentencing process must satisfy due process requirements, it need not provide entire panoply of criminal trial procedural rights); Williams v. New York, 337 U.S. 241, 69 S.Ct. 1079, 93 L.Ed. 1337 (1949). However, the “dangerous special offender” proceeding is neither of these precisely; rather it is a kind of halfway house between them. Like state recidivism statutes, see Gryger v. Burke, 334 U.S. 728, 732, 68 S.Ct. 1256, 1258, 92 L.Ed. 1683 (1948), section 3575 does not involve a separate criminal charge, but instead subjects a defendant to increased punishment for the underlying conviction. United States v. Neary, 552 F.2d 1184, 1194 (7th Cir.), cert. denied, 434 U.S. 864, 98 S.Ct. 197, 54 L.Ed.2d 139 (1977). Like normal sentencing proceedings, the “dangerous special offender” proceeding grants the trial court broad discretion to impose sentences within statutorily prescribed limits; but unlike normal sentencing proceedings, a section 3575 hearing requires an additional finding of fact before the court may subject defendants to longer sentences than otherwise authorized.
In several ways section 3575 is similar to the Colorado Sex Offenders Act found unconstitutional in Specht v. Patterson, 386 U.S. 605, 87 S.Ct. 1209, 18 L.Ed.2d 326 (1967). That statute allowed the trial court to sentence a defendant who committed a sex offense to a harsher term than otherwise would be authorized for the underlying [677]*677crime. Before doing so, the trial court had to make a new finding of fact — not an ingredient of the offense charged — that on the basis of a written psychiatric report the defendant posed a “threat of bodily harm to members of the public, or [was] an habitual offender and mentally ill.” Pursuant to the Act, Specht, who had been convicted of a sex crime carrying a maximum ten year sentence, was sentenced to an indefinite term of one day to life imprisonment. On appeal he argued that the Sex Offenders Act denied him due process because it allowed the trial court to make its findings on the basis of undisclosed hearsay evidence and did not allow the defendant to cross-examine adverse witnesses or present his own evidence.
The Supreme Court held that the Sex Offenders Act violated due process. It reasoned that, unlike normal sentencing statutes, the Act did not make commission of a specified crime the basis for sentencing, but instead made one conviction the basis for commencing another proceeding to make a new finding of fact and thereby enhance criminal punishment. Id. at 608, 87 S.Ct. at 1211. The Court concluded that due process required the defendant to be “present with counsel, have an opportunity to be heard, be confronted with witnesses against him, have the right to cross-examine, and to offer evidence of his own.” Id. at 610, 87 S.Ct. at 1212.
The Specht Court did not address what standard of proof due process required, but it did quote from and express agreement with a Third Circuit decision that, in considering a similar statute, stated:
“It is a separate criminal proceeding which may be invoked after conviction of one of the specified crimes. Petitioner therefore was entitled to a full judicial hearing before the magnified sentence was imposed. At such a hearing the requirements of due process cannot be satisfied by partial or niggardly procedural protections. A defendant in such a proceeding is entitled to the full panoply of the relevant protections which due process guarantees in state criminal proceedings. He must be afforded all those safeguards which are fundamental rights and essential to a fair trial, including the right to confront and cross-examine the witnesses against him.”
386 U.S. at 609-10, 87 S.Ct. at 1212 (quoting United States ex rel. Gerchman v. Maroney, 355 F.2d 302, 312 (3d Cir. 1966) (emphasis added)). Several courts have focused upon that quotation and its “full panoply” language in considering whether the Due Process Clause requires a higher standard of proof than the preponderance test set out in section 3575(b). United States v. Bowdach, 561 F.2d 1160, 1172-75 (5th Cir. 1977); United States v. Stewart, 531 F.2d 326, 332-34 (6th Cir.), cert. denied, 426 U.S. 922, 96 S.Ct. 2629, 49 L.Ed.2d 376 (1976); United States v. Inendino, 463 F.Supp. 252, 256-58 (N.D.Ill.1978), aff’d, 604 F.2d 458, 459 (7th Cir.), cert. denied, 444 U.S. 932, 100 S.Ct. 276, 62 L.Ed.2d 190 (1979); United States v. Duardi, 384 F.Supp. 874, 882-83 (W.D.Mo. 1974), aff’d on other grounds, 529 F.2d 123 (8th Cir. 1975). All but Duardi upheld the preponderance standard. We agree with those courts that have said the Specht Court’s quotation of the Third Circuit language should not conclusively determine this important issue because the issue was not before that Court. See Hollis v. Smith, 571 F.2d 685, 690 (2d Cir. 1978); United States v. Bowdach, 561 F.2d 1160, 1173-74 (5th Cir. 1977); Note, The Constitutionality of Statutes Permitting Increased Sentences for Habitual or Dangerous Criminals, 89 Harv.L.Rev. 356, 367-68 (1975).
Specht certainly stands for the proposition that statutes like section 3575 must provide greater procedural protections than those normally afforded defendants in sentencing proceedings. Section 3575 guarantees to a defendant the right to a hearing, to assistance of counsel, to compulsory process, to cross-examination of adverse witnesses, to findings of fact, and to appeal of an adverse decision — every procedure expressly required by Specht. If we were to hold that the “full panoply” of procedural rights applicable to criminal trials must be available in section 3575 hearings, we would have to permit the defendant to have a [678]*678jury, require a “beyond a reasonable doubt” standard of proof for all essential facts, and exclude hearsay — including that found in presentence reports which the statute permits the judge to utilize. See In re Winship, 397 U.S. 358, 90 S.Ct. 1068, 25 L.Ed.2d 368 (1970). However, we do not believe that much is required.
First, determining what process is due depends on a balancing of the interests involved. Addington, 441 U.S. at 425, 99 S.Ct. at 1809. Significant interests lie on both sides. Even at regular sentencing proceedings, a defendant, although he has no right to a particular sentence, does have “a legitimate interest in the character of the procedure which leads to the imposition of sentence.” Gardner v. Florida, 430 U.S. 349, 358, 97 S.Ct. 1197, 1205, 51 L.Ed.2d 393 (1977). Schell’s interest in the nature of the procedures at the dangerous special offender hearing is greater than it would be at normal sentencing proceedings because the dangerous special offender status brings an increased sentence beyond the statutory maximum for the underlying felony and may hinder his ability to gain parole. See United States v. Fatico, 458 F.Supp. 388, 401 (E.D.N.Y.1978), aff’d, 603 F.2d 1053 (2d Cir. 1979), cert. denied, 444 U.S. 1073, 100 S.Ct. 1018, 62 L.Ed.2d 755 (1980); cf. Holmes v. United States Board of Parole, 541 F.2d 1243, 1251 (7th Cir. 1976) (prison board’s classification as special offender affects a prisoner’s prospects for parole); Cardaropoli v. Norton, 523 F.2d 990, 994 (2d Cir. 1975) (same). The government, however, also has legitimate interests in protecting society from an individual who is likely to engage in further criminal conduct — through incapacitation of the offender — and in deterring others like him.
Second, the function of the trial court in a section 3575 proceeding is quite similar to its function in ordinary sentencing decisions. The wider range of punishment than normally would apply to the underlying felony conviction becomes available only when notice has been given by the government before trial. 18 U.S.C. § 3575(a). Then, after trial or acceptance of a plea, the judge must find certain historical facts about defendant’s past record that are easily verifiable: that defendant has been previously convicted of at least two felonies committed on different occasions (and is now convicted of another on a different occasion); that defendant has been imprisoned on at least one of the prior felonies; and that less than five years have elapsed between commission of the felony now before the court and commission of the last prior felony or defendant’s release from prison for one of the prior convictions. Id. § 3575(e)(1).4 The court, having found all this to be true, must make another finding that defendant requires confinement longer than that permitted for the underlying felony in order to protect the public from his further criminal conduct. That finding is obviously a judgment similar to that which every sentencing judge makes in establishing whether to give a convicted defendant a short or long sentence within the range permitted by the underlying statute. The decision must be based upon the judge’s view of the historical record, the nature of the underlying crimes, the presentence report, and the testimony presented by both sides as to defendant’s character and propensity for criminal behavior.
We recognize that many states have required a trial court to find beyond a reasonable doubt that the defendant is a recidivist before sentencing him to an increased sentence. In re Yurko, 10 Cal.3d 857, 519 P.2d 561, 564, 112 Cal.Rptr. 513 (1974); People v. Casey 399 Ill. 374, 77 N.E.2d 812, 815 (1948); Smith v. State, 243 Ind. 74, 181 N.E.2d 520, 522 (1962); State v. Martin, 336 S.W.2d 394, 396-97 (Mo.1960); State v. Livermore, 196 P. 977 (Mont.1921); State v. Janiec, 9 N.J.Super. 29, 74 A.2d 605, 606, cert. denied, 341 U.S. 955, 71 S.Ct. 1007, 95 L.Ed. 1376 (1951); People v. Reese, 258 N.Y. 89, 179 N.E. 305, 307 (1932); State v. Waterhouse, 209 Or. 424, 307 P.2d 327, 330 [679]*679(1957) (en banc); State v. Lawson, 125 W.Va. 1, 22 S.E.2d 643, 644 (1942). We also recognize the difficulties in making a finding of dangerousness, and that any clinical or diagnostic process for identifying such offenders probably results in significant overprediction. See ABA Standards for Criminal Justice — Sentencing Alternatives and Procedures 40 (1979). But the Supreme Court has said, in connection with civil commitments for mental illness, “there is a serious question as to whether a state could ever prove beyond a reasonable doubt that an individual is both mentally ill and likely to be dangerous.” Addington, 441 U.S. at 429, 99 S.Ct. at 1811.
Finally, we recognize that “the prime responsibility for rationalizing the penalty structure of the penal code must in the last analysis fall upon the legislature.” ABA Standards, supra, at 38. The preponderance standard inserted in .section 3575(b) was a deliberate decision of Congress, a coordinate branch of government empowered by the Constitution to “provide for the ... general Welfare of the United States.” U.S.Const. art. I, § 8, cl. 1. The legislative history indicates that Congress was aware of the due process concerns — indeed the very arguments made here — and that it weighed these concerns. See H.R.Rep.No. 1549, 91st Cong., 2d Sess. (1970), reprinted in 1970 U.S.Code Cong. & Ad.News 4074-75 (statement of Rep. Dennis); id. at 4086-87 (statement of Reps. Conyers, Mikva and Ryan). We must, therefore, give great weight to its decision, see Fullilove v. Klutznick, 448 U.S. 448, 472, 100 S.Ct. 2758, 2771, 65 L.Ed.2d 902 (1980), and we are reluctant to say that Congress’ balancing of those interests was incorrect.
Taking into account all these considerations, we conclude that Schell’s interests and the government’s interests are roughly equal and, therefore, that the trial court’s use of section 3575’s preponderance standard did not violate Schell’s due process rights. In doing so we join four other circuits. See United States v. Inendino, 604 F.2d 458, 463 (7th Cir.), cert. denied, 444 U.S. 932, 100 S.Ct. 276, 62 L.Ed.2d 190 (1979); United States v. Williamson, 567 F.2d 610, 615 (4th Cir. 1977); United States v. Bowdach, 561 F.2d 1160, 1175 (5th Cir. 1977); United States v. Stewart, 531 F.2d 326, 334 (6th Cir.), cert. denied, 426 U.S. 922, 96 S.Ct. 2629, 49 L.Ed.2d 376 (1976).
AFFIRMED.