Uncovering Benghazi mistakes "matters," says emotional official

Eric Nordstrom, a former regional security officer in Libya, said during emotional congressional testimony on Wednesday that uncovering what happened "before, during, and after" the September 2012 attack on a diplomatic facility in Benghazi "matters to me personally...it matters to the American public for whom we serve, and most importantly it matters to the friends and family" of the four Americans slain there.