Better safe than sorry: say no to the Precautionary Principle

Next time some politian, probably Charles Clarke, says that everybody should be locked up in small indiviual boxes because they might do scare-story-of-the-week is it might be good to remind the bastard of the logical consquences to the Precautionary Principle, that it nullifies itself as they must justifie that the precaution that they are preaching will not do harm, which it almost always will.