you may never knead your wallet again. there's a brand new payment system than your credit card. we're talking about paying with your veins. actually, sort of a pattern in your veins, something i think would be difficult to copy. paying with your veins. >> here's one of the devices from a swedish start-up company called qwikster. there are other companies that have something similar. what it does, it's a biometric machine. it looks at -- here's an image what your hand looks like underneath the skin. it's not a fingerprint scanner or palm print scanner, looking at the veins to identify you. everybody has a unique vein pattern like they do with fingerprints. using a very harmless infrared light like on your tv remote control, it scans your veins and gives you clearance. this one has a pin pad on it for