― Kan was unlike any person I've talked with up to this point. He's not technically homeless, but he's making his way around the United States as a "traveler." "I traveled around from '94 until '03 in the Marine Corps. I'm just so used to it. My [doctor] back in Boston says it's part of my PTSD (post-traumatic stress disorder). I can't sit still. I mean, I got a house back in Boston. I just don't want to be there... I just don't like being inside. I spent 22 months in Afghanistan. I was hunting [...].