assault is a threat to the united states military. president obama spoke at the u.s. naval academy graduation today and said misconduct by even a few service members can hurt the entire institution. >> those who commit sexual assault are not only committing a crime, they threatened the trust and discipline that makes our military strong. that's why we have to be determined to stop these crimes. because they have got no place in the greatest military on earth. >> shepard: earlier this month a pentagon report estimated 26,000 service members were victims of sexual assault last year alone. but only about 3300 reported the attacks. amateur video captured the moment police opened fire on two men, two men accused of hacking to death a british soldier. it happened in broad daylight on a busy south london street. [explosion] [gunfire] [bleep]