It's not, though. It's taking a technology which is at least being considered, and imagining a use which it could (if developed) very easily be put to. Do I think Apple is going to actually develop this tech? No, it would be a PR nightmare. But given the ease it could be abused if developed, I would like to see a firm statement from Apple describing their intentions with the patent. Understandably, they don't like talking about what they do with the patents they get, but this is one I'd like to see something more explicit.