U.S. urges Israel to stop using “dumb bombs” in Gaza

Most of the bombs Israel is using in its war against Hamas are so-called dumb bombs, which aren’t guided by a weapons system. As civilian deaths rise, the U.S. is urging Israel to curb its use of these bombs in Gaza, although U.S. officials say many Palestinian civilian deaths are a result of Israel hitting targets in densely populated neighborhoods. David Martin reports.