They've only spent $40M on backscatter machines, so do some math: $155M - $40M = $115M What did they waste this other $115M on? Puffers, perhaps? & what else? USA Today: TSA puts controversial scanners in storage For now, the 91 machines are in a Texas warehouse, which now holds a total of $155 million in unused equipment awaiting either disposal or redeployment, according to Sanders.Rep. Mike Rogers, R-Ala., who led the hearing, called it an "extremely disturbing situation" and says he is "really aggravated about it."The TSA has spent $140 million on full-body scanners, according to Sanders. This includes $40 million for backscatter machines and $100 million for millimeter-wave machines that already produce stick-figure images.