; (ii) ineligible to receive a visa or other documentation to enter the United States; and (iii) otherwise ineligible to be admitted or paroled into the United States or to receive any other benefit under the Immigration and Nationality Act ( 8 U.S.C. 1101 et seq. ). (B) Current visas revoked (i) In general An alien described in subsection (a) is subject to revocation of any visa or other entry documentation regardless of when the visa or other entry documentation is or was issued. (ii) Immediate effect A revocation under clause (i) shall take effect immediately and automatically cancel any other valid visa or entry documentation that is in the alien’s possession. (C) Exceptions Sanctions under this paragraph shall not apply with respect to an alien if admitting or paroling the alien into the United States is necessary— (i) to permit the United States to comply with the Agreement regarding the Headquarters of the United Nations, signed at Lake Success June 26, 1947, and entered into force November 21, 1947, between the United Nations and the United States, or other applicable international obligations