The other problem is that Israel is a tiny country, they only have two international airports -- so they can focus all of their resources on those two airports. That's not the case here in the US.
But you can get into a smaller, regional airport securely by flying in from an even smaller airport. So you need to secure those too.
We have a lot of airports in the US that need to be secured.
The better response is to tell Americans that airplanes are a terrorist target, just like busses (which are bombed all the time in Israel, thanks to their stellar airport security making airlines a harder target), and to remain vigilant.
That is all. Taking off our shoes, submitting to naked photographs and (just for fun) radiation is beyond laughable. It seems people would rather be demeaned than live in (an irrational) fear. Sad.
Even sadder: more Americans will die by choosing to drive rather than fly. Somehow, I doubt Big Sis sheds a tear.