O'Hare International Airport in the US has installed the first full-body scanner to screen passengers' clothes for explosives.
The move is part of Transportation Security Administration's (TSA) plan to provide 150 such scanners at all major airports in the country for an additional security upgrade.
The imaging technology at O'Hare Airport will see through clothes by using low-dose X-rays at a passenger's front and back, according to the Associated Press.
The new scanner, consisting of two blue machines the size of phone booths set a few feet apart, will be installed at existing security checkpoints in the middle of older detectors at the airport.
It will scan passengers as they will walk between the two units.
The body scanner will automatically obscure faces and genital areas to maintain the passenger's privacy.
Images created by the body scanner will be seen only by a TSA personnel 20ft away in a room with frosted-glass walls.
TSA has already deployed the first scanner last week at Boston's Logan International Airport.