NEW YORK (AP) — The first lady and "American Sniper" star Bradley Cooper are backing a new challenge to TV and film producers and writers to accurately represent U.S. troops who have returned from war and move away from portraying them either as victims or infallible heroes. Michelle Obama and Cooper joined a list of media heavyweights Friday in Washington, D.C., to launch the new "6 Certified" program with representatives from Warner Bros., National Geographic Channels and the Producers Guild of America on hand. The initiative will allow TV shows and films to display an onscreen badge that tells viewers the show they're watching has been certified by the group Got Your 6, which derives its name from military slang for "I've got your back." Chris Marvin, managing director of Got Your 6 and a former U.S.