The Last Word with Lawrence O'Donnell 01/24/13

Sen. Feinstein introduces a new and improved assault weapons ban

In the wake of the Newtown massacre, Senator Dianne Feinstein introduced a bill that would ban military-style assault weapons and high-capacity ammunition magazines, and also closes loopholes from the original 1994 ban of assault weapons. MSNBC's ... more Duration: {{video.duration.momentjs}}