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Last week's foiled airline bombing plot by a Nigerian man who hid explosives in his clothing has renewed debate in the United States as to how extensive and invasive passenger screening should be at U.S. airports. A few major airports already possess machines that can take detailed, full-body images, but Congress has not mandated widespread
use of the technology.
Air travelers worldwide are accustomed to passing through metal detectors. But in an era of plastic explosives and advanced chemical compounds, that system has proved lacking. Fewer than two dozen U.S. airports possess full body scanners, which cost about $170,000 each. US President Barack Obama described the incident as a "systemic failure" of America's security apparatus.
Do you think that these scanners would prove very effective to prevent a recurrence of such incident?
Do the scanners pose health risks, especially for frequent travelers?
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