; or (2) the intent to terminate such payments and the circumstances justifying such termination. . 11104. Improving training to foreign-vetted law enforcement or national security units The Secretary of Homeland Security, or the designee of the Secretary, may, with the concurrence of the Secretary of State, provide training to foreign-vetted law enforcement or national security units and may waive reimbursement for salary expenses of such Department of Homeland Security personnel, in accordance with an agreement with the Department of Defense pursuant to section 1535 of title 31, United States Code. 11105. Enhancing the operations of U.S. Customs and Border Protection in foreign countries Section 411(f) of the Homeland Security Act of 2002 ( 6 U.S.C. 211(f) ) is amended— (1) by redesignating paragraph (4) as paragraph (5); and (2) by inserting after paragraph (3) the following: (4) Permissible activities (A) In general Employees of U.S. Customs and Border Protection and other customs officers designated in accordance with the authorities granted to officers and agents of Air and Marine Operations may, with the concurrence of the Secretary of State, provide the support described in subparagraph (B) to authorities of the government of a foreign country if an arrangement has been entered into between the Government of the United States and the government of such country that permits such support by such employees and officers. (B) Support described The support described in this subparagraph is support for— (i) the monitoring, locating, tracking, and deterrence of— (I) illegal drugs to the United States; (II) the illicit smuggling of persons and goods into the United States; (III) terrorist threats to the United States; and (IV) other threats to the security or economy of the United States; (ii) emergency humanitarian efforts