What we know about the deadly air assault on Mosul

U.S. airstrike in Mosul leaves more than 100 civilians dead. More

In the U.S.-led coalition fight against the Islamic State group, a airstrike in mid-March reportedly left more than 100 civilians dead in Western Mosul. John Yang speaks with Loveday Morris of The Washington Post about the strike and how brutal fighting is affecting civilians.

AIR DATE 3/27/17