Here’s a chemist’s take on the plausibility of the London liquid bomb plot, followed by commentary on what he calls Potemkin security. He references Schneier, and goes on about the practicality of security against these kind of plots (as almost everything can be impregnated with nitrates, such as clothing) and the practicality of guarding against these specific threats. Yup, we all need cavity searches and x-rays before we board the planes naked.