Travelling by air on Wednesday 24 Nov 2010? In the United States?
Good luck. Better be prepare to wait. Get to the airport 4 hours before domestic flights and the day before if you are visiting family and friends overseas.
The details from the website:
"National Opt-Out Day. You have the right to opt-out of the naked body scanner machines (AIT, or Advance Imaging Technology, as the government calls it). All you have to do is say "I opt out" when they tell you to go through one of the machines. You will then be given an "enhanced" pat down. This is a right given to you by the TSA. There is no intent or desire to delay passengers en route to friends and family over Thanksgiving. People also need to remember to stay within the confines of the law and the regulations of TSA when exercising their right to a pat down. Passengers, please note there has been at least one report of long delay for people who take the TSA up on their offer to opt out of the naked body scanners, so please keep that in mind when planning your airport arrival time."