Actually, I'll side with Kat on the water, because it really doesn't matter. At the time of the whole UK incident with precipitated this, a bunch of experts said that you need an amazing amount of something (most likely hydrogen peroxide) (i.e gallons) and most likely would just kill yourself in the bathroom rather than take down a plane. My wife has a MS in Biochemistry and, IIRC, agreed with the that the fear was unfounded.A