It's been 1 month since the elementary school shooting in Newtown, Connecticut, reports NBC's Anne Thompson; and weighing in on the debate over banning assault weapons is Kate Obenshain, author of "Divider-In-Chief;" Robert Costa, National Review; Don Clark, Former FBI Special Agent; and Steven Greer, The Healthcare Channel CEO.
CNBC's Hampton Pearson reports Cerberus Capital Management is selling its stake in The Freedom Group after one of that firms guns was used in the Connecticut school shootings; and Mary Ellen O'Toole, Retired Senior FBI Profiler, and Don Clark, Former FBI Special Agent, offer insight on what investigators know about Adam Lanza and what they're looking for in the case.