Specifically, the U.S. Transportation Security
Administration this week said it would contract NAS to "further understand
the effects of backscatter X-ray advanced imaging technology."
TSA in March 2011 insisted that full-body airport scanners "operate well within
applicable national safety standards" but committed to ongoing testing. A
few months later, the
Electronic Privacy Information Center released documents
claiming that full-body airport scanners caused "cancer clusters"
among TSA workers who operated the machines in Atlanta and Boston.