Changes in Airline Security Procedures
Concern about bombs possibly concealed in shoes led to a new requirement of all airline passengers departing from an airport in the United States having to pass through airport security in socks or bare feet while their shoes are scanned for bombs. However, scanners do not find PETN in shoes or strapped to a person. A chemical test is needed. However, even if the x-ray scanners cannot detect all explosives by itself, it is still an effective way to see if the shoe has been tampered with to hold a bomb.
In 2011, the rules were somewhat relaxed to allow children 12 and younger to keep their shoes on during security screenings.
Read more about this topic: Richard Reid
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