academy at west point. it went on for nearly three years. his job, to mentor and train cadets. the sergeant's conduct was discovered last year. after a criminal investigation, he is now charged with indecent conduct, dereliction of duty, cruelty, and maltreatment. the story was first reported by "the new york times." it's the latest in a series of high-profile cases of sexual misconduct in the military. president obama is outraged and vowing to crack down on assaults. >> he has zero tolerance for sexual assault in the military and that he believes that it is -- that those who participate in it dishonor the uniform they wear. >> reporter: defense secretary chuck hagel says, accountability must improve. >> starting with some of the questions about victims saying, and rightfully so, that they didn't feel their commanders were accountable, enough to be able to come forward and