re the liquid screening debate - there's people here who know much more about airport security than me - so here's a serious question from a naive soul: if we have to discard (most) liquids because they could be explosive, why do most airports put them into a trash can in an busy area, where there's usually a lot of people?
if they're potentially explosive, wouldn't it make more sense to discard the water bottles and yoghurts into some kind of explosion-containing, special bomb-disposal device far away, and get rid of the danger in a safe manner (maybe a controlled explosion)?