Obama's Gun Violence Policies and Second-Term Priorities   

Amidst the pomp and circumstance surrounding President Obama’s inauguration, we take a closer look at the foreign and domestic policy issues confronting his second term. Plus, the administration’s plan to take on  gun violence and the debt ceiling.  Joining Gwen: Peter Baker, New York Times; John Dickerson, Slate Magazine/CBS News; Amy Walter, Cook Political Report; Charles Babington, Associated P