As ISIS presence dwindles, troops in Iraq face other threats

In the latest targeting of American troops in Iraq, an unexploded rocket landed close to a military base on Sunday. There were no serious damages. Today around 2,500 U.S. troops remain in the country -- the lowest in two decades, and ISIS has lost significant territory, fears of resurgence in case of a troop pullout remain. Leila Molana-Allen and Adrian Hartrick report.