Petitioners-appellants 1 (petitioners or aliens) are Cuban nationals who have been ordered excluded from the United States and, following revocation of their immigration parole, are detained in custody of the Immigration and Naturalization Service (INS) pending their return to Cuba. The aliens filed petitions for habeas corpus alleging that their detention violates their due process rights, is an abuse of discretion by the Attorney General, and violates international law. The district court consolidated and dismissed the petitions. 2 Petitioners appealed this ruling, raising the same issues before this Court. We affirm.
Facts and Proceedings Below
The facts concerning petitioners are similar and undisputed. Petitioners are Cuban nationals who arrived in the United States in 1980 during the Mariel boatlift 3 in which approximately 125,000 Cubans came to the United States. Officials from the INS detained the aliens at the border and later made a decision to exclude them from the United States. The validity of this exclusion is not challenged. The United States has been unable to return petitioners to Cuba, however, because Cuba has thus far refused to accept them back. 4 No other *1440 country has expressed a willingness to accept the Mariel Cubans.
Following their initial detention, petitioners were granted immigration parole into the United States by the INS. While on immigration parole, each of the petitioners was convicted of, and sentenced for, violations of state or federal law ranging from attempted murder to trafficking in cocaine to petty theft. After petitioners were released from their imprisonment for these offenses, their immigration parole was revoked on the basis of their convictions. The validity of these convictions is not challenged. Final orders of exclusion were entered against petitioners; at the time of this appeal, they remain in INS custody in state or federal prisons where they have been for over two years, awaiting their return to Cuba. 5
The aliens filed petitions for habeas corpus in the district court, contending that their continued detention is illegal. The district court denied the petitions, and this appeal followed.
Discussion
We review
de novo
the district court’s dismissal of a habeas corpus petition.
Alvarez-Mendez v. Stock,
The exclusion of aliens is a fundamental act of sovereignty.
United States ex rel. Knauff v. Shaughnessy,
United States immigration laws create two types of proceedings in which aliens may be denied the hospitality of this country: deportation hearings and exclusion hearings.
Landon v. Plasencia,
Although aliens seeking admission into the United States may physically be allowed within its borders pending a determination of admissibility, such aliens are legally considered to be detained at the border and hence as never having effected entry into this country.
Garcia-Mir v. Smith,
Petitioners do not challenge that they have been lawfully excluded from the United States. Instead, they claim that, be *1441 cause their return to Cuba is indefinite, their continued detention without further parole is unconstitutional, without proper statutory authority, and in violation of international law.
I. Constitutionality of Indefinite Detention
Petitioners raise two specific arguments alleging that their continued detention violates their constitutional rights. First, they contend that their incarceration constitutes punishment without a criminal trial, in violation of substantive due process. Second, petitioners argue that they have been deprived of a liberty interest without procedural due process. 6
The Supreme Court has held that detention of aliens pending exclusion does not violate the aliens’ constitutional rights. The leading case on this issue is
Shaughnessy v. United States ex rel. Mezei,
The Supreme Court reversed. The Court held that respondent was “an entrant alien or ‘assimilated to [that] status’ for constitutional purposes,” rather than a resident alien despite his prior residency in the United States.
Mezei,
A. Substantive Due Process
Petitioners argue that they are being punished without a criminal trial in violation of the substantive due process guarantee of the Fifth Amendment. In making this argument, the aliens rely only on the fact and duration of their continued detention by the INS in federal or state penal institutions; they do not complain about the conditions of that detention or claim that they are subject to corporeal mistreatment. Thus the question before us is whether the detention itself constitutes punishment.
The focus of our inquiry is whether the detention is imposed for the purpose of punishment or whether it is merely incidental to another legitimate governmental purpose.
Schall v. Martin,
The Ninth Circuit applied this test to the detention of a Mariel Cuban in
Alvarez-Mendez v. Stock.
In holding that detention of an excluded alien did not constitute illegal punishment, the court concluded that protecting society from a potentially dangerous alien was a rational, non-punitive purpose for detention.
Alvarez-Mendez,
'
Petitioners cite
Lynch v. Cannatella,
In
Lynch,
this Court addressed the classifications based on alienage that determine the availability of constitutional rights to non-citizens. The court acknowledged that the “ ‘entry fiction’ that excludable aliens are to be treated as if detained at the border despite their physical presence in the United States determines the aliens’ rights with regard to immigration and deportation proceedings,” but stated that the fiction did not limit the right of excludable aliens to humane treatment while detained within the United States.
Lynch,
We hold that the continued INS detention of the petitioners is not punishment and does not constitute a violation of the aliens’ rights to substantive due process.
B. Procedural Due Process
Petitioners claim that they are entitled to the due process protections of the Fifth Amendment. The Supreme Court has held, however, that excludable aliens are entitled only to those due process rights as are provided by law.
Knauff v. Shaughnessy,
Petitioners assert three specific claims to procedural due process in the parole process: (1) that they have a liberty interest in being paroled; (2) that they were denied due process in the revocation of their parole; and (3) that they have not been granted due process in the review of their parole determinations. We conclude that petitioners have not been denied any process due them.
Petitioners contend that they have a liberty interest in their freedom, i.e. in being paroled from immigration detention. Such an interest may arise from a statute, regulation, or directly from the due process clause. Hewitt v. Helms,
Further, petitioners seek the same due process rights to the initial revocation of their immigration parole as those granted to criminal parolees. Petitioners' claims concern their immigration parole rather than parole from serving a criminal sentence. Immigration parole is a part of the admissions process, and its denial or revocation does not rise to the level of a constitutional infringement. Fernandes-Roque v. Smith,
Finally, petitioners claim that their rights to procedural due process have been violated by their continued detention without parole because the parole review procedures are constitutionally insufficient. Federal regulations exist that set forth explicitly the procedure for parole determinations concerning the I\4ariel Cubans. 8 C.F.R. §~ 212.12, 212.13. The section 212.12 regulations establish findings that must be made before recommending parole, factors to be considered in determining whether to recommend parole, and the procedures for review hearings. 11 Petition *1444 ers do not contend that these procedures were not followed here.
We hold that petitioners have not been denied procedural due process.
II. Statutory Authority of the Attorney General
Petitioners do not challenge the Attorney General’s power to exclude them nor his authority to revoke their immigration parole and detain them pending exclusion. 12 Rather, they contend that the Attorney General lacks the authority to detain them indefinitely. 13
The Immigration and Nationality Act (INA) confers on the Attorney General the authority to administer and enforce the INA; this power includes the power to detain or parole excluded aliens prior to deportment. 8 U.S.C. §§ 1103, 1182.
Amendments to the INA in 1990 and 1991 distinguish between aliens who have been convicted of aggravated felonies and those who have not. Although these amendments became effective after revocation of petitioners’ immigration parole, they may properly be considered in this discussion because our concern is with the legality of petitioners’ present detention.
See Alvarez-Mendez v. Stock,
*1445 A. Aliens Convicted of Aggravated Felonies
It is clear in the context of deportation proceedings that the Attorney General may detain aliens convicted of aggravated felonies. 8 U.S.C. § 1252(a)(2)(B), as amended by § 504(a)(5) of the Immigration Act of 1990 and § 306(a)(4) of the Immigration Technical Corrections Act of 1991, provides that
“[t]he Attorney General may not release from custody any lawfully admitted alien who has been convicted of an aggravated felony, either before or after a determination of deportability, unless the alien demonstrates to the satisfaction of the Attorney General that such alien is not a threat to the community and that the alien is likely to appear before any scheduled hearings.”
This provision is limited by its terms to lawfully admitted aliens who are subject to deportation; it does not apply to petitioners, who are excluded aliens. A similar amendment in the context of 8 U.S.C. § 1226(e), pertaining to exclusion, was introduced in 1991 but was not adopted by Congress. 15
The Ninth Circuit, in
Alvarez-Mendez v. Stock,
acknowledged the lack of a corresponding amendment in the context of exclusion proceedings but interpreted section 1226(e), first enacted in November 1990, to fill the gap.
16
The court reasoned that to allow the Attorney General to detain de-portable aliens, without providing the same authority regarding excludable aliens, would “undermine Congress’ attempt to protect society from dangerous aliens” and “would be contrary to accepted tenets of U.S. immigration law, which treat aliens subject to deportation more favorably than those seeking initial admission.”
Alvarez-Mendez,
The Ninth Circuit held that the Attorney General has explicit statutory authority to continue the detention of excludable aliens convicted of aggravated felonies based on its interpretation of 8 U.S.C. § 1226(e).
Alvarez-Mendez,
While we are inclined to agree with the general approach of the Ninth Circuit in Alvarez-Mendez, we do not regard section 1226(e) as a limitation on the Attorney General’s authority to detain excludable aliens, either before or after final determination of excludability, pending their removal from this country. Section 1226(e), first enacted in 1990, is written in this respect as a limitation on the Attorney General’s power to release, or not to detain, and is not written as a grant of or limitation on his power to detain. Rather, it appears to assume such power. As explained below, we believe the Attorney General has implicitly been granted the power to detain in these circumstances.
B. Aliens Not Convicted of Aggravated Felonies
At all events, the INA does not expressly grant the authority to detain indefinitely those excluded alien petitioners who have not been convicted of aggravated felonies but who cannot be immediately deported.
18
Courts addressing the issue, however, conclude that “Congress
implicitly
authorized the Attorney General to order such detention.”
Palma v. Verdeyen,
The Attorney General’s implicit authority to detain excludable aliens is not unlimited, however, as the return of the alien must be immediate “unless the Attorney General ... in his discretion, concludes that immediate deportation is not practicable or proper.” 8 U.S.C. § 1227(a). The Fourth Circuit held that the Attorney General had complied with this provision by instituting procedures to review each alien’s case.
Palma v. Verdeyen,
Petitioners rely on
Rodriguez-Fernandez v. Wilkinson,
*1447 In contrast, in the present case each of the petitioners has been determined not suitable for parole. Although the timing of the petitioners’ return to Cuba is uncertain, the United States is continuing its negotiations with Cuba to effect this return.
To the extent that
Rodriguez
is not distinguishable from the present appeal, we decline to agree with the Tenth Circuit’s reasoning there, and instead align ourselves with more recent cases that have upheld the Attorney General’s authority to detain Marie! Cubans indefinitely. In
Pal-ma v. Verdeyen,
the Fourth Circuit reversed the district court’s grant of habeas corpus, stating that “indefinite detention of a permanently excluded alien deemed to be a security risk, who is refused entry to other countries, is not unlawful.”
Palma,
We conclude that the INA authorizes the Attorney General to continue to detain petitioners, whether or not they have been convicted of aggravated felonies, until the United States is able to deport them.
We do not suggest that the Attorney General would have the authority to continue to indefinitely detain petitioners if he refused to allow their deportation to a country that was willing and able to accept them; at least absent circumstances now difficult to conceive, that would doubtless be essentially punitive and hence improper as an administrative action without the due process appropriate thereto.
Wong Wing v. United States,
Accepting petitioners’ arguments here would allow one country to export its unwanted nationals and force them upon another country by the simple tactic of refusing to accept their return.
See Jean v. Nelson,
III. Public International Law Claims
Public international law has been incorporated into the common law of the United States,
The Paquete Habana,
*1448 Petitioners contend their incarceration violates principles of public international law that prohibit prolonged arbitrary detention. Although we have not previously addressed this issue, other circuits have held in the context of immigration detention that international law is not controlling because federal executive, legislative, and judicial actions supersede the application of these principles of international law.
In
Garcia-Mir v. Meese,
the Eleventh Circuit, addressing a situation similar to that now before this Court, found that the decision of the Attorney General to incarcerate excluded Mariel Cubans indefinitely pending efforts to deport them constituted a controlling executive act sufficient to prevail over international law.
The Ninth Circuit focused on the controlling act of the legislature in enacting the Immigration and Nationality Act.
Alvarez-Mendez v. Stock,
The immigration statutes, Attorney General actions, and Mezei, are equally applicable here. We concur with the decisions of the Eleventh and Ninth Circuits in this respect and hold that international law does not require the release of the petitioners where these legislative, executive, or judicial decisions exist to the contrary.
Petitioners also contend that prolonged arbitrary detention is a violation of fundamental human rights law, or
jus cogens.
22
Committee of U.S. Citizens Living in Nicaragua v. Reagan,
Conclusion
We hold that, under these circumstances, the continued detention, though indefinite, of the petitioners does not violate the petitioners’ constitutional rights; that ordering such detention is within the discretionary power of the Attorney General; and that principles of international law do not operate to prohibit their detention. The judg *1449 ment of the district court is AFFIRMED. 24
Notes
. Petitioners are Felix Gonzales Gisbert, Alberto Quintero, Alberto Garcia, Carlos Ocaña, Jose Luis Perez, Sixto C. Asevedo, Ricardo Sanchez-Patterson, Reina Cecilia Martinez, Jesus Crespo Carbonell, Roberto Castellón, Jose Luis Arguez-Perez, and Miguel Martinez-Diaz.
. The opinion of the district court is published as
Ramos v. Thornburgh,
. The Cubans who arrived in the boatlift are known as Mariel Cubans because they departed from the Mariel Harbor in Cuba.
. In December 1984, Cuba and the United States reached an agreement pursuant to which Cuba was to take back 2,746 Mariel Cubans. Cuba suspended the agreement in May 1985, after only 201 excludable Cubans had been returned. In November 1987, Cuba agreed to resume implementation of the 1984 agreement. Approximately 450 excludables have returned to Cuba since 1987. The United States’ position is and consistently has been that Cuba is required to take back all of its nationals who are denied admission to the United States.
. It appears from the record that petitioner Carlos Ocaña has been released; accordingly, his case is dismissed as moot. The record also shows that Alberto Quintero was approved for release, and that Miguel Martinez-Diaz and Ricardo Sanchez Patterson were awaiting administrative review; should any of those petitioners have been released, counsel should now promptly so inform this Court.
. Petitioners also rely on
Foucha v. Louisiana,
- U.S. -,
. Petitioners seek to distinguish Mezei on the grounds that the Attorney General had found the alien to be a threat to national security. However, there the Attorney General refused to disclose, even in camera, any of his reasons or evidence for so concluding. In the present case, moreover, the petitioners have been convicted of criminal offenses and determined likely to be a threat to the community. One of the criteria considered in reviewing parole decisions is whether the alien is likely to pose a threat to the community. 8 C.F.R. § 212.12(d)(2).
. In the context of deportation of resident aliens, the Supreme Court has found that deportation proceedings are not intended as punishment.
Immigration and Naturalization Service v. Lopez-Mendoza,
. See id. at 1370 ("stowaways ... even if they are physically present in the United States ... do not possess a due process right to remain free of incarceration pending their deportation”), 1376 ( ... "the stowaways possessed no due process right to remain free of incarceration pending their deportation").
. 8 U.S.C. § 1 182(d)(5)(A) provides that
"[t]he Attorney General may in his discretion parole into the United States temporarily under such conditions as he may prescribe for emergent reasons or for reasons deemed strictly in the public interest any alien applying for admission to the United States, but such parole of such alien shall not be regarded as an admission of the alien...." (Emphasis added.)
. 8 C.F.R. § 212.12 grants Marie! Cubans in immigration detention an annual review for pa. role determinations by a Cuban Review Panel. This review includes a personal interview of the detainee by the panel if parole is not recommended after a review of the alien's file. Section 212.12(d)(4). The panel, designated by the Director of the Cuban Review Plan, considers factors such as the detainee's past history of criminal behavior, his behavior while in custody, his ties to the United States, and the likeli- *1444 hood that he may abscond from a sponsorship program. Section 212.12(d)(3) ("The following factors should be weighed in considering whether to recommend further detention or release on parole”). In order to recommend an alien for parole, the panel must first conclude that: (1) the detainee is presently a nonviolent person; (2) the detainee is likely to remain nonviolent; (3) the detainee is not likely to pose a threat to the community following his release; and (4) the detainee is not likely to violate the conditions of his parole. 8 C.F.R. § 212.-12(d)(2) ("Before making any recommendation that a detainee be granted parole ... [the panel] must conclude that”).
8 C.F.R. § 212.13 allows aliens who have been denied parole under the above procedures to request a single review by a special Department Panel. Section 212.13(a), (b). This panel is established by the Associate Attorney General, and includes three individuals from within the Justice Department, one of whom must be an attorney and one a representative of the Community Relations Service. No INS representative serves. Section 212.13(c). The detainee is allowed to submit to the Department Panel a written statement setting forth factors he considers relevant to the parole consideration; a member of the Department Panel may interview the detainee. Section 212.13(e), (f).
Although section 212.12 establishes criteria to be considered by the review panel there provided for in determining whether to recommend parole, and requires certain findings
before
a recommendation may be made that parole be granted, section 212.12(d), it does not go so far as to mandate or require a recommendation of parole in
any
case.
See Kentucky Dept. of Corrections,
. Were petitioners to contest these points, they would be precluded by precedent in this Circuit. This Court has held that revocation of immigration parole without a hearing was as a matter of law not an abuse of discretion, and that the Attorney General could legally hold an excluded alien in custody when he determined that parole is not in the public interest and immediate deportation is impossible.
Ahrens v. Rojas,
. Petitioners base their contention that their detention is unreasonably indefinite on a belief that they are not included in the list of Mariel aliens to be returned to Cuba pursuant to the 1984 repatriation agreement with Cuba because they were not in INS custody at the time of the agreement.
. The aggravated felon category includes petitioners Perez, Castellón, Arguez-Perez, and Martinez, who have all been convicted of drug trafficking offenses. 8 U.S.C. § 1101(a)(43). Other petitioners who may fall within this category on the basis of convictions for crimes of violence (as defined in 18 U.S.C. § 16) include Gisbert (aggravated assault with intent to commit robbery), Garcia (attempted murder in the second degree), Ocaña (aggravated assault with a deadly weapon), and Asevedo (aggravated assault). Finally, Carbonell may also be included on the basis of a prior murder conviction in Cuba. 8 U.S.C. § 1103(a)(43) (applicable offenses in vio *1445 lation of foreign law are included if the term of imprisonment was completed within the previous fifteen years).
. The rejected amendment to section 1226(e) would have provided that "the Attorney General may not release from custody any alien convicted of an aggravated felony, either before or after a determination of excludability, unless [found not to be a threat to the community].” S. 1620, 102nd Cong., 1st Sess., 137 Cong.Rec. 11,802 (1991). (Provision rejected, H.R. 3049, 102nd Cong., 1st Sess., 137 Cong.Rec. 11,491 (1991).)
. Section 1226(e) was added to the INA by P.L. 101-649, Title V, § 504(b), 104 Stat. 5050, 101st Cong. 2nd Sess., November 29, 1990. It was amended by a not presently relevant amendment to its paragraph (1), to read in its present form by P.L. 102-232, Title III, § 306(a)(5), 105 Stat. 1751, 102nd Cong., 1st Sess., December 12, 1991. Section 1226(e) provides:
“(1) Pending a determination of excludability, the Attorney General shall take into custody any alien convicted of an aggravated felo-
ny upon release of the alien (regardless of whether or not such release is on parole, supervised release, or probation and regardless of the rearrest or further confinement in respect of the same offense).
(2) Notwithstanding any other provision of this section, the Attorney General shall not release such felon from custody unless the Attorney General determines that the alien may not be deported because the condition described in section 1253(g) of this title exists.
(3) If the determination described in paragraph (2) has been made, the Attorney General may release such alien only after—
(A) a procedure for review of each request for relief under this subsection has been established,
(B) such procedure includes consideration of the severity of the felony committed by the alien, and
(C) the review concludes that the alien will not pose a danger to the safety of other persons or to property.”
. Section 1253(g) concerns a situation where “any country upon request denies or unduly delays acceptance or the return of any alien who is a national, citizen, subject, or resident thereof...." Thus if Cuba again repudiated its agreement to accept the Mariel Cubans, section 1226 would no longer apply.
.
Cf.
8 U.S.C. § 1252(c), where the INA does provide an express time limit for detention in deportation cases. This provision, not limited to dangerous felons, requires the Attorney General to deport the alien within six months of the final order of deportation or final order of a court if the administrative action is judicially reviewed. There is no equivalent requirement in exclusion cases, indicating to the courts that Congress intended to authorize more stringent restrictions on the freedom of excluded aliens than those imposed on resident aliens.
Palma v. Verdeyen,
.Another distinguishing factor of Rodriguez was that the alien had never been paroled after his arrival in the United States and thus had committed no crimes in this country. We must be careful in distinguishing Rodriguez on this ground, however. Although petitioners have committed crimes in this country, they have already served their sentences for those crimes.
. Nor do we address the precise conditions or nature of the detention. Petitioners' only complaint is that they are institutionally detained instead of being paroled into the general population.
. Petitioners contend that the principle quoted from
The Paquete Habana
is merely dictum and should not control here. This ignores the acceptance of this principle in subsequent decisions.
See Committee of U.S. Citizens Living in
*1448
Nicaragua v. Reagan,
.
Jus cogens
describes peremptory norms of law which are nonderogable and form the highest level of international law.
Committee of U.S. Citizens Living in Nicaragua v. Reagan,
. Except that as to petitioner Carlos Ocaña the judgment is modified so as to dismiss his suit as
. In 1987, the announcement of the reinstatement of the 1984 repatriation agreement with Cuba sparked riots among Mariel Cubans detained in federal detention centers in Atlanta, Georgia, and Oakdale, Louisiana. The center in Louisiana was substantially destroyed.
Buchanan v. United States,
