GETTY IMAGES/Mark Wilson
A traffic pattern is seen in this long shutter exposure of vehicles traveling on Washington's Capitol beltway on Wednesday, Nov. 21, 2007, in Fairfax County, Va. Wednesday is traditionally the busiest travel day with millions hitting the road and rails and taking to the air for the Thanksgiving holiday.
AP Photo/M. Spencer Green
Amber Wasendorf and her son Erik Wasendorf, 2, watch the Radio City Rockettes precision dance troupe perform as their family waits to fly to Orlando for the Thanksgiving holiday Wednesday, Nov. 21, 2007 at O'Hare International Airport in Chicago. The Rockettes were at O'Hare to entertain travelers on one of the busiest travel days of the season.
AP Photo/Mike Derer
William Cramer, of Prospect Park, N.J., hugs his mother, Betty, as she arrives from Travers City, Mich., at Newark Liberty International Airport in Newark, N.J., Wednesday, Nov. 21, 2007, for a Thanksgiving reunion.
AP Photo/Matt Rourke
Travelers wait for a train at the 30th Street Station in Philadelphia, Wednesday, Nov. 21, 2007.
GETTY IMAGES/Scott Olson
Thomas Lorenzana of Amityville, N.Y., pushes his luggage through O'Hare Airport Tuesday, Nov. 20, 2007, in Chicago. AAA estimates that 38.7 million Americans nationwide will travel 50 miles or more from home this Thanksgiving, with 2.8 million expected to pass through Chicago's two airports.
GETTY IMAGES/Scott Olson
Passengers head to their flights at O'Hare Airport Tuesday, Nov. 20, 2007 in Chicago. An estimated 4.7 million people are expected to fly to their destinations this Thanksgiving.
AP Photo/Elise Amendola
A traveler walks past as others wait in line at Terminal C in Logan International Airport in Boston Tuesday, Nov. 20, 2007 during the busy Thanksgiving travel period.
AP Photo/Nick Ut
Planes at Los Angeles International Airport make their way through the airport runway system Tuesday, Nov. 20, 2007, after thick coastal fog shut down one of two runways for arriving airplanes Monday night, causing delays for passengers at the start of the busy Thanksgiving week. Fog impacted operations at Los Angeles-area airports for the second time in a week.
GETTY IMAGES/Chip Somodevilla
First class passengers settle in next to two animal crates containing turkeys 'May' and 'Flower,' who are flown to Orlando, Fla., on a United Airlines flight at Dulles International Airport Tuesday, Nov. 20, 2007, from Fairfax, Va. The two turkeys were pardoned by President Bush before both birds were flown to Disney World to be honorary grand marshals at the theme park's Thanksgiving Day Parade.
AP Photo/Mike Derer
Items ranging from bottles of wine and water to knives, swords and replica guns confiscated from airline passengers are displayed at Newark Liberty International Airport in Newark, N.J., Thursday, Nov. 15, 2007. With the Thanksgiving crush of passengers expected at airports, Transportation Security Administration screeners wanted to remind holiday travelers about items that are not permitted to be carried on board.
