Argument: Scanners do not detect low-density items very well

Issue Report: Full-body scanners at airports


A British defense-research firm reportedly found that full-body scanners can be unreliable in detecting “low-density” materials like plastics, chemicals, and liquids, which is what the 2009 Christmas “underwear bomber” had stuffed in his briefs.[1]

Steve Chapman. “The Naked Truth about Airport Scanners.” Reason. January 7, 2010: “A Conservative member of the British parliament who previously worked for a company making scanners said that “in all the testing that we undertook, it was unlikely that it would have picked up the current explosive devices being used by al-Qaida.”