One of the enduring mysteries of the last Gulf War has driven 48-year-old Navy veteran Bill Finnegan to the far eastern tip of Long Island. Correspondent Susan Spencer reports. "I live out here in the boonies, and I pretty much stay to myself all the time," says Finnegan, who mostly keeps company with his horses and dogs. "It's my choice, because I just don't feel right." It's easier, he says, than trying to explain the ravages of Gulf War Syndrome to his friends.