"Grenade-walking" part of "Gunwalker" scandal (CBS News) There's a new twist in the government's "gunwalking" scandal involving an even more dangerous weapon: grenades. CBS News investigative correspondent Sharyl Attkisson, who has reported on this story from the beginning, said on "The Early Show" that the investigation into the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)'s so-called "Fast and Furious" operation branches out to a case involving grenades. Sources tell her a suspect was left to traffic and manufacture them for Mexican drug cartels. Police say Jean Baptiste Kingery, a U.S. citizen, was a veritable grenade machine. He's accused...
