The Last Word with Lawrence O'Donnell 12/17/12

President Obama: ‘We Can't Tolerate This Anymore’

President Obama posed a challenge to the country and its lawmakers after the tragedy in Newtown. But will the politics prove too difficult this time? MSNBC's Lawrence O'Donnell discusses with Rep. Carolyn McCarthy, who became a gun control advocate ... more Duration: {{video.duration.momentjs}}