What will they think of next?! Hmm, invisible tanks, there's an interesting thought. But then how's the bloke in charge supposed to know where his tanks are? I suppose the next step is silent bombs, then a war could be going on next door and you'd never know a thing about it!
Coming next: Invisible speed traps (no more need to put them behind hedges, road signs or walls!), invisible traffic wardens (no longer any chance of spotting the bastards when you park or running them over when you leave!). Hey, maybe they could paint all the litter in London so the tourists can't see it, save clearing it up too. Anything else?
