Who's behind the wheel? Volunteer drivers used in presidential motorcades
Ever seen a presidential motorcade? It's how the president usually travels from Air Force One to an event. Two dozen or more vehicles zooming through closed-off streets at 40 to 60 mph, and it can get pretty hairy. What some may find surprising is that some of the drivers are students, local party volunteers or just people with friends in the White House. Bill Plante reports.