Passengers on Derailed Amtrak Train Reach Destinations

An investigation is under way into why a big rig slammed into an Amtrak train full of passengers on Monday, knocking several Amtrak cars off the tracks. Hours later, a separate big rig slammed into another Amtrak train. John Cádiz Klemack reports for the NBC4 News at 11 p.m. on Oct. 1, 2012.