COLUMBIA, S.C. — A congressional committee is traveling to South Carolina later this month to hold a hearing over a federal labor lawsuit that claims Boeing Co. moved manufacturing facilities from Washington state to avoid unionized workers.The U.S. House Committee on Oversight and Government planned to announce Wednesday that it will hold a June 17 hearing in North Charleston, home to Boeing's new 787 passenger aircraft assembly line.Read More... More on Darrell Issa