I try to understand why people say things like this:
"You know, if it keeps someone from blowing up a plane, it's OK."
They don't need proof that it works or understand why we're doing it. They just need to know that some faceless security official (who maybe had a vested interest in selling backscatter machines) tells them it's the only way to stop the terrorists from knocking planes out of the sky.
I wonder at what point things become invasive enough for the average American to stop and question this security theatre... I'm eagerly awaiting the day the get out stirrups and forceps "because otherwise the terrorists might smuggle a bomb in their vahjayjays!" Ludicrous. We're a nation of fucking sheep.
And yet... it's still one of the greatest places to live. Sigh.