Sources say ATF Acting Director Kenneth Melson is being moved out of the top job at the Bureau. It's not yet publicly known where he would go, but sources inside the Justice Department believe one option is a transfer to a position at Department of Justice headquarters. The Justice Department had no immediate comment, and did not confirm the move. Melson's move would be another in a number of high-level personnel shifts, as the Inspector General continues investigating the so-called gunwalker scandal at the Justice Department and the Bureau of Alcohol, Tobacco and Firearms. ATF promotes "Fast and Furious" supervisors...