"FILE - In this Sept. 18, 2014 file photo, House Foreign Affairs Committee Chairman Ed Royce, R-Calif. speaks on Capitol Hill in Washington. A bill now making its way through the U.S. Congress, and being watched closely in Pyongyang, is designed to shut off North Korea, and anyone who deals with it, from the U.S. dollar, the world's most important currency. Royce said after the act was introduced in February and updated after the massive cyberattack on Sony Entertainment, would ""step up the targeting of those financial institutions in Asia and beyond that are supporting this brutal and dangerous regime."" (AP Photo/Carolyn Kaster, File)"