U.S. President Barack Obama (seated) signs H.R. 6156, the Russia and Moldova Jackson-Vanik Repeal and Magnitsky Rule of Law Accountability Act, in the Oval Office of the White House in Washington, December 14, 2012. From L-R are: Obama, U.S. Rep. Steny Hoyer, U.S. Rep. Sandy Levin, U.S. Rep. Jim McGovern, U.S. Rep. Gregory Meeks, acting Secretary of Commerce Rebecca Blank, CEO of Caterpillar Douglas Oberhelman (back), and President of the National Endowment for Democracy Carl Gershman. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS BUSINESS)