It's the shoes, Money

Airport X-ray scans of airline passengers' shoes cannot detect explosives, according to a 2005 Homeland Security Department report on aviation screening. So why are authorities still scanning our shoes with outdated technology incapable of spotting what it's supposed to spot? Snip from AP item:

Findings from the report, obtained by The Associated Press, did not stop the Transportation Security Administration from announcing Sunday that all airline passengers must remove their shoes and run them through X-ray machines before boarding commercial aircraft. (...)

In its April 2005 report, "Systems Engineering Study of Civil Aviation Security — Phase I," the Homeland Security Department concluded that images on X-ray machines don't provide the information necessary to detect explosives. Machines used at most airports to scan hand-held luggage, purses, briefcases and shoes have not been upgraded to detect explosives since the report was issued.