ABC News Nightline: Meet NYC Man Who Commandeers Subway Trains, Buses

"Tonight you're going to meet a man whose life has been ruined by his own obsessive urges. Diagnosed with Asperger's he says he's plagued by unyielding desire to drive public trains and buses. So much so that when he sees one of them he says he can't stop himself from hopping aboard and driving away. He's been jailed over and over again but he says he's never been given treatment, so does he need punishment or help?..."  watch here...