The Fast and Furious scandal, in which the Justice Department knowingly gave Mexican criminal gangs thousands of guns, just keeps escalating. The latest development centers around whether or not Attorney General Eric Holder lied to Congress about having knowledge of the controversial gun trafficking operation. Recently released documents say Holder was briefed about the operation long before he told the Judiciary Committee he was first aware of what was going on. (Holder now claims he misunderstood the question was being asked.) What's more, CBS News investigative journalist Sharyl Attkisson -- who's been covering the scandal from the beginning -- says...