Transportation Security Agency (TSA) workers carry out security checks at Denver International Airport, the day before the Thanksgiving holiday in Denver November 24, 2010. Millions of Americans took to the skies on Wednesday for the start of the Thanksgiving holiday but air travel flowed smoothly despite protests over new security procedures, including calls for passengers to boycott high-tech body scanners. Over 160,000 people were expected to move through the airport today. REUTERS/Rick Wilking (UNITED STATES – Tags: TRANSPORT SOCIETY) – RTXV0X0