; (2) ineligible to receive a visa or other documentation to enter the United States; and (3) otherwise ineligible to be admitted or paroled into the United States or to receive any benefit under the Immigration and Nationality Act ( 8 U.S.C. 1101 et seq.). (d) Current visas revoked (1) In general An alien described in subsection (b) is subject to revocation of any visa or other entry documentation regardless of when the visa or other entry documentation is or was issued. (2) Immediate effect A revocation under paragraph (1)— (A) shall take effect immediately; and (B) shall automatically cancel any other valid visa or entry documentation that is in the alien’s possession. (e) Exceptions Sanctions under subsections (c) and (d) shall not apply with respect to an alien if admitting or paroling the alien into the United States is necessary— (1) 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; or (2) to carry out or assist law enforcement activity in the United States. (f) National security The President may waive the application of this section with respect to an alien if the President— (1) determines that such a waiver is in the national security interest of the United States; and (2) submits a notice of, and justification for, such waiver to the appropriate congressional committees. 109. Promoting greater energy security (a) Policy statement It is the policy of the United States to help Caribbean countries— (1) achieve greater energy security