Good video at link about squad mates having to sign non-disclosure statements.Sgt. Bowe Bergdahl slept on his bed frame, and then the concrete floor, collected contact information, and talked about becoming a mercenary in what his squad mates now describe as behavior that laid the groundwork for his disappearance in Afghanistan nearly six years ago. "I asked him, 'Why are you sleeping on the frame of your bed?'" former Sgt. Matt Vierkant recalled in a recent interview with Fox News. "I was like well, that's weird. And then I remember coming back -- I don’t know if it was a...