Sen. Dianne Feinstein, California Democrat, speaks during a news conference on Capitol Hill in Washington, Thursday, Jan. 24, 2013, to introduce legislation on assault weapons and high-capacity ammunition feeding devices. (AP Photo/Manuel Balce Ceneta)

Photo by: Manuel Balce Ceneta

Sen. Dianne Feinstein, California Democrat, speaks during a news conference on Capitol Hill in Washington, Thursday, Jan. 24, 2013, to introduce legislation on assault weapons and high-capacity ammunition feeding devices. (AP Photo/Manuel Balce Ceneta)