France is now using a full-body security scanner for U.S. bound passengers at Paris' Charles de Gaulle Airport.
The new technology will be tried out for three months.
Authorities decided to test the system after a man tried to ignite explosives hidden in his underwear on a Christmas Day flight to Detroit.
Patrick Gandil, head of the French Civil Aviation Authority, said the scanners posed no danger to passengers.
"However, it will reflect on objects hidden under the clothes and therefore we will be able to have a very good visualization of everything situated on the skin and without any necessary contact," he said.
French authorities plan to put body scanners in all French airports in the near future.