The Axis of Nielsen-Hayden wonders how far we’ll go in banning liquids on planes, and so do we.

It’s folly to think we can keep all hazardous substances off planes. Richard Reed got on board with explosives three months after 9/11, for crying out loud. All you really need to know is that people in prison get weapons, and flight can never be as tightly controlled a prison, so what hope is there, really, of solving the problem (such as it is) with this kind of “filter?”