A scanner mounted on a tripod
at a busy part of an airport will point at people 30 feet away.
The machine reads the energy
emitted from a human body. It looks for "cold" spots where dense objects
such as explosives block energy.
Machines were recently tested
at Minneapolis-St. Paul International Airport and Denver International
Airport during conventions.
In the test at Denver, the
scanner led to two people being questioned by police. Neither was
arrested. Two people also were questioned in Minneapolis and weren't
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