Well, I must confess that I had a good hand pulled English Bitter a couple of mornings ago in Heathrow as part of my breakfast while waiting to come back stateside, so I can certainly sympathize with the young lass.

I'm guessing that the overall water restriction is not here to stay. I hope that I'm not proven wrong.

Chemistry in the hands of idiots can be a very dangerous thing for all concerned. Acetone, if my limited knowledge of chemistry is right, is nail polish remover. I imagine that it would take about half a plane of people's worth of nail polish remover to create a big enough bang to maybe bring down a plane. And nitroglycerin, although a common enough prescription medicine, would also require quite a bit of it.

False containers are an interesting topic, though. Can the x-ray detect the false compartments?