Why Obama wants to use air power against the Islamic State

Aired: 8/9/2014 | 0:04:04 | Clip
In order to protect Americans and provide humanitarian aid to Iraq, President Obama on Saturday discussed efforts to slow advances by Islamic jihadists in northern Iraq and rescue thousands of civilians who have fled from them. Douglas Ollivant, a senior national security fellow at the New America Foundation, joins Hari Sreenivasan to discuss the details.