U.S. launches first military action in Yemen since the death of a Navy SEAL
The U.S. launched more than 20 airstrikes in Yemen in an early-morning raid Thursday - its first military action in the country since the death of a U.S. Navy SEAL William "Ryan" Owens. It comes as the White House defends the raid following claims that it did not yield any valuable intelligence. National Security correspondent David Martin has more.