anal probing......

why do aliens always do anal probing.
what are they expecting to find.

I mean what are they thinking,
Hey thats a new race, lets look in his ass.

Did columbus do the same thing when he landed in america,
"hmmm, look some strange Natives, lets look in their ass"

Prostate Stimulation.

Columbus... did not have the technology.

They allow for monitoring of many bodily activitis for possibly even days at a time, before they are excreted into waste and expelled (unbeknownst to the human) from the body. Clean, simple, and efficient.

"Meat. They're made out of meat."

"Meat?"

"There's no doubt about it. We picked up several from different parts of the planet, took them aboard our recon vessels, and probed them all the way through. They're completely meat." [0]

[0]http://www.terrybisson.com/meat.html