Did anyone else grow up with a parent who joked that one day, we’d forgo everything from keys to credit cards in favor of a chip in our hand? No? Just me? Well, Dad, you were right. Although not ...

Wave your hand to access a computer terminal, or touch a power screwdriver to prove that you are authorized to use it, thanks to bodyhacking. It looks like a slick Jedi move, but it’s actually the ...