President Barack Obama greets workers at the General Motors Orion Assembly Plant in Orion Township, Mich., Friday, Oct. 14, 2011, where he and South Korean President Lee Myung-bak toured the facility to promote the free trade agreement between Washington and Seoul that was passed by Congress this week. The GM operation is a U.S. and South Korean collaboration where the subcompact Chevrolet Sonic is produced. (AP Photo/J. Scott Applewhite)