Security Fails To Detect Guns, Knives

Security Fails To Detect Guns, Knives
(Undated) -- A commonly used security scanner apparently fails to detect dangerous weapons and explosives. Researchers report that it's possible to conceal knives, guns and explosives from detection by the scanner. The researchers say the scanner that was retired from airports last year is still in use at courthouses and prisons. The Transportation Security Administration spent more than a billion dollars upgrading airport security technology last year.