Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

DENVER - NOVEMBER 22:  Air travelers move through a main security checkpoint at the Denver International Airport on November 22, 2010 in Denver, Colorado. The TSA is bracing for heavy traffic the day before Thanksgiving, as two separate internet campaigns are promoting a "National Opt-Out Day" protest during which travelers are urged to "opt out" of the new body scanners because of concerns over privacy and possible exposure to radiation. Those passengers who refuse the scans must instead undergo an enhanced pat down by TSA agents, which could further slow down security lines on the busiest air travel day of the year.  (Photo by John Moore/Getty Images)
DENVER - NOVEMBER 22:  Air travelers move through a main security checkpoint at the Denver International Airport on November 22, 2010 in Denver, Colorado. The TSA is bracing for heavy traffic the day before Thanksgiving, as two separate internet campaigns are promoting a "National Opt-Out Day" protest during which travelers are urged to "opt out" of the new body scanners because of concerns over privacy and possible exposure to radiation. Those passengers who refuse the scans must instead undergo an enhanced pat down by TSA agents, which could further slow down security lines on the busiest air travel day of the year.  (Photo by John Moore/Getty Images)

    JUST WATCHED

    TSA changes rules for airport security screenings

MUST WATCH

TSA changes rules for airport security screenings

The Transportation Security Administration rules now say some passengers may not be able to elect to have a pat-down instead of a body scanner. CNN's Rene Marsh reports.

TSA changes rules for airport security screenings

The Transportation Security Administration rules now say some passengers may not be able to elect to have a pat-down instead of a body scanner. CNN's Rene Marsh reports.