ATF acting head Ken Melson stepped down Tuesday amid a probe into the ill-fated Fast and Furious gun tracing program. But Congressional investigators believe there's more blame to go around.
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.
Gabrielle Giffords shooting suspect: Jared Lee Loughner has been charged with the murders of US District Judge John Roll and Gabrielle Giffords aide Gabe Zimmerman, as well as causing the deaths of four others.
It is fast tracking bills that would allow the state to admit temporary workers from Mexico.