'A lot of history yet to play out': Syrian rebels capture Damascus as Assad flees
The Assad Regime has ended in Syria with rebels taking Damascus. NBC News' Richard Engel is on the ground in Damascus and NBC News' Kelly O'Donnell is at the White House with our reporting. MSNBC anchor Ayman Mohyeldin and Director for Iraq at the National Security Council during the Bush and Obama administrations Douglas Ollivant join Ana Cabrera to discuss.