; or (bb) to carry out or assist law enforcement activity in the United States. (iii) Blocking of property The President may exercise all of the powers granted to the President under the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.) to the extent necessary to block and prohibit all transactions in property and interests in property of any national of the country described in subparagraph (A)(II), if such property and interests in property are in the United States, come within the United States, or are or come within the possession or control of a United States person. (iv) Prevention of access to international payment channels The President may work with international partners to prevent access to the Society for Worldwide Interbank Financial Telecommunications (commonly known as SWIFT ) network and other payment channels by any national of the country described in subparagraph (A)(II). (C) Notification to Congress Not later than 60 days after receiving a report under subparagraph (A)(i) with respect to a country— (i) the President shall notify Congress of any action taken by the President pursuant to the report