[pieter1976]

Where does this end? After the liquid ban everything was banned from aircraft accept passport and boarding pass for a while. Imagine that becomes the norm.

Then terrorists realise that the rectum has a capacity of 500 to 800ml and decide to stuff a bomb large enough to puncture an aircraft wall in the anus and then remove it in flight.

[logicallee]

I don't know where it ends (obviously I don't agree with the laptop ban), but I think it's pretty ridiculous to suggest that it's a foregone conclusion that passengers can and will bring explosives on planes. It's simply not a strong argument, I feel. It won't convince anyone.