Why don't they just use the full body x-ray scanners on all passengers?

I actually got in this argument with my dad the day before I left and he said that it won't be done because people bitch that it violates their rights but I made the point that if its presented for convenience and was done in a non-revealing or violating way that I'm sure the public could agree to it.

but hey its also easier to tell your customers that they aren't worth the effort and money and just keep violating their rights in more ridiculous ways every time there is a terrorism scare. But I honestly don't think we'd even need that. I say put atleast one air marshal on every plane armed with a tazer, baton, and a can of mace for reassurance and deterrance. Even though from what it seems a good semaritan (anyone on the plane not willing to die) would be more likely to make the first move. Which has been proven when something wicked comes down someone jumps on the would be terrorist and beats the living shit out of them. I am most definitely sure this has happened several times already the last bombing attempt with the (black?) guy and the shoe bombers.

I think this is more important. It proves that people are willing to take their safety into their own hands if need be and it really rallies people and gives them a sense of assurance and confidence in a way that our government or any police force could possibly achieve.

But then again that wouldn't be very practical either

Thanks a lot, Bin Laden...