As Americans began their journeys home after Christmas, two U.S. airports experienced scary moments on Saturday. Correspondent Bill Michaels reports: A Florida bound Spirit airplane that was still at the gates of New York’s LeGuardia Airport, evacuated passengers after the crew reported heavy smoke coming from the aircraft. Airport operator spokeswoman said the firefighters didn’t find any smoke when they responded to the call. No injuries were reported. Meanwhile, a Boeing 757 suffered minor damage at Denver International Airport when an engine caught fire at the gate while it was being moved by mechanics. Airport spokeswoman said no passengers were on the plane and the fire was quickly put out. No injuries were reported.