Word: detectors
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Dates: during 1980-1989
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...screening of passengers and their baggage has been routine at all major terminals since the mid-1970s. Individuals must pass through a metal detector, and carry-on luggage is examined, usually by an X-ray machine. These devices can occasionally be fooled: lead-lined bags sold to protect film can shield weapons from detection, and metal foil can sometimes be used to distort the shape of an image. It is up to the operator of the X-ray machine to insist on opening a bag for closer inspection when a blank mass or an unusual image appears on the screen...
...Reagan Administration has tried to stop leaks through a series of expanded restrictions on U.S. employees, including lie-detector tests; insiders say that since taking office the Administration has had a steady average of 20 to 30 investigations in progress. This activity might increase as the Pentagon moves toward high-tech, supersecret weaponry, such as the proposed Star Wars antimissile system. Moreover, to the alarm of civil libertarians, the Administration now claims that leakers can be jailed under an existing law: the Espionage...
Beyond deciding how to deal with those who disclose classified information, the Pentagon has been working on an older and more basic problem: how to screen out security risks. Increasingly, the Pentagon is turning to the lie detector for this purpose. In 1983, the last year for which a count is available, the Defense Department administered 21,000 routine polygraph checks to its employees. This year, with special congressional authorization, some 3,500 key officials who have access to highly secret information, or may be under consideration for such access, will be given additional polygraph tests. They will be specifically...
...According to the ABC show, Rewald's company had provided cover for several CIA operations, including the arrangement of secret arms shipments to Syria and Taiwan. The CIA denied the story, and two weeks ago ABC issued a "clarification." Barnes had refused to take a lie-detector test, said ABC Anchor Peter Jennings, and checking showed that his "charges cannot be substantiated and we have no reason to doubt the CIA'S denial...
...scientists finally employed an instrument called a coronagraph, which can block out the most blinding light of a star, making a kind of eclipse. With Beta in shadow, Terrile and Smith then attached a special detector to the telescope that picked up the weakest light signals around Beta. The resulting image of an encircling disc looked remarkably similar to our own solar system. Analyzing the configuration of the disc with a computer, they found that some matter may have condensed to form planets...