Boko Haram 'empties out entire countryside' in new attacks

Aired: 9/7/2014 | 0:03:20 | Clip
Boko Haram, the militant Islamist movement in Nigeria, has been launching new attacks in Africa in an effort to gain more territory. But the group, notable for kidnapping hundreds of young schoolgirls, appears to be shifting its tactics. Drew Hinshaw of the Wall Street Journal joins Hari Sreenivasan via Skype from Ghana.