yes
no. They will use the hand held scanner on the parts of your body with no visible metal.
No
Airports have very tight security. They are really cautious about anything like if you have a pen in your pocket.
No, absolutely not. The people of the customs are not allowed to withhold someone from entering a plane, because of physical diseases, disabilities or other dysfunction of the body. This is the case everywhere in the world.
No. the screen is always in a private room where just the security staff or technicians (and doctors) can see.
Martin Annis was the inventor of the full body scanner.
The airport x-ray machine works the same way as what a hospital or a doctors office would use. X-rays pass through objects that are less dense and stop at those objects that are dense, and the dense objects will show up as white on the screen.
The Georgia Strait
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An iris scanner uses visible and near-infrared light to scan the iris of an eye. The iris scanner takes a picture and uses it to compare that to an image already stored in a database to see if there is a match. Since everyone's eyes are unique, iris scanners are becoming more popular for identifying people in security situations.
no
Pacific Ocean