All Olympic heroes don't get medals. A shuttle bus was transporting journalists. The snow was heavy; the narrow road slick. The driver halted to fix the chains. With nobody at the wheel, the bus began rolling backward, toward a cliff. "Thought I was dead," said David Casstevens of Phoenix. "Quick prayer," recalled Thomas Bonk of L.A. Disaster was averted when Dallas writer Mark McDonald leaped to yank the emergency brake.