Shocking video of Syrian rebels executing government soldiers poses new questions for U.S. support

The latest video from Syria, allegedly showing the shameless execution of government soldiers by radical rebels, emphasizes the reason why the Obama administration isn't pushing for regime change as an objective of military strikes.

However, Stephen Hadley, former National Security Adviser to President George W. Bush, tells CNN's John Berman we should feel safe arming certain rebel groups. Hadley says the U.S. has vetted the multiple rebel factions within Syria and has identified those “we can begin to work with and arm.”

Hadley says there are radical wings of the Syrian rebel army but they have long broken from the pack and are already working with Al Qaeda.