Anyone defending these bits of nonsense because of how much DUI is a terrible crime (which it is), would you agree that making child porn is at least as bad? So, if you're okay with random cars being stopped for 'DUI', are you okay with random houses being entered and searched, 'to stop CP'? They're terrible crimes, and random searches may just save someone. Are you okay with cops forcibly entering your house at any time to make sure no kids are being hurt (and also that you aren't doing anything else that may be considered wrong)? I know that's an extreme example but the fundamental principle is the same -- you shouldn't ever be subject to a random search/examination without cause.