In a story of betrayal worthy of an episode of Dateline NBC, undercover producer Michelle Madigan was exposed and forced out of the conference on Friday Dateline NBC Producer Michelle Madigan was publicly outed at the Defcon security conference in Las Vegas Friday after show organizers were tipped off that she was trying to film show attendees with a hidden camera. ... Madigan ran from the show after organizers publicly threatened to escort her from the event at the beginning of a 4 p.m. conference session by noted hacker HD Moore. "She literally kicked the door open," said "Priest," a...