"Shoe bombers -- we have to take off our shoes. Liquid -- we have to take out our liquid. Now we're being groped because of the diaper bomber. What's next? The proctologist? The gynecologist?" said Rep. John Mica (R-Fla.).
"Do I understand the sensitivities of people? Yes. If you're asking am I going to change the policies? No," said TSA administrator John Pistole.
There's also concern about the amount of radiation those full-body scanners emit.
Federal officials insist the level of radiation is too minuscule to be harmful and an independent group of experts agrees.
However, the experts said there is concern about the possibility of the machines malfunctioning and emitting too much radiation, resulting in a higher risk of developing cancer.