Additionally, what happens with a terrorist shoves a [plastic] bomb up his butt? Will they then switch over to only x-ray (as opposed to the radio wave) machine

Additionally, what happens with a terrorist shoves a [plastic] bomb up his butt? Will they then switch over to only x-ray (as opposed to the radio wave) machines and up the juice to look into our bodies and/or require cavity searches? Or even, how telling are these images from these machines? Could a determined person kill and animal or human, strip the skin and attach it with stitches to their own body to create a cavity to hold contraband? Perhaps making it look like a beer belly? This is getting absurd?