In the Fast and Furious operation, ATF agents lost track of as many as 2,500 high-powered firearms. Acting Director Kenneth Melson has stepped down, but a congressional investigation will continue.
Fast and Furious, the Mexico gun-running sting gone bad, may cost the ATF's acting chief his job. A larger concern is that it may undermine efforts to stop the flow of US guns south.
Obama's nomination of Andrew Traver to head the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) reignites concern that the White House wants to whittle away at gun rights. The last time that happened, Americans armed up.