(1) In general The issuing consular officer, the Secretary of State, or the Secretary of Homeland Security (or a designee of either Secretary) shall revoke any visa or other entry documentation issued to any alien who is included on the list required under section 7(a), regardless of when such visa or entry documentation was issued. (2) Effective date Revocations under paragraph (1) shall take effect on the date such action is taken and shall automatically cancel any other valid visa or entry documentation that is in the alien’s possession. (c) Waiver for national security interests (1) In general The Secretary of State may waive, with respect to an alien, the application of section 212(a)(2) of the Immigration and Nationality Act, as amended by subsection (a), or the application of subsection (b) if the Secretary— (A) determines that such waiver— (i) is necessary to permit the United States to comply with the Agreement between the United Nations and the United States of America regarding the Headquarters of the United Nations, signed June 26, 1947, and entered into force November 21, 1947, or other applicable international obligations of the United States