; or (B) any authorized intelligence or law enforcement activities of the United States. (2) Compliance with united nations headquarters agreement This section shall not apply with respect to the admission of an individual to the United States if the admission of the individual is necessary to comply with United States obligations under the Agreement between the United Nations and the United States of America regarding the Headquarters of the United Nations, signed at Lake Success June 26, 1947, and entered into force November 21, 1947, under the Convention on Consular Relations, done at Vienna April 24, 1963, and entered into force March 19, 1967, or under other international obligations of the United States. (3) Exception relating to importation of goods (A) In general The authority to block and prohibit all transactions in all property and interests in property under this section shall not include the authority to impose sanctions on the importation of goods. (B) Good defined In this paragraph, the term good means any article, natural or man-made substance, material, supply or manufactured product, including inspection and test equipment, and excluding technical data. (g) Implementation