By Steve Neavling
As lines grow at airports during the holidays ,TSA changed its rules to allow full-body scans, USA Today reports. 
Previously, travelers were allowed to opt for a pat-down search instead.
But because of terrorism concerns, TSA announced the change Friday.
The scanners are designed to detect non-metallic objects that could be used as weapons.
“Generally, passengers undergoing screening will still have the option to decline a (full-body) screening in favor of physical screening,” said Bruce Anderson, a TSA spokesman. “However, some passengers will be required to undergo (full-body) screening if warranted by security considerations in order to safeguard transportation security.”
“This will occur in a very limited number of circumstances where enhanced screening is required,” Anderson added. “The vast majority of passengers will not be affected
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