On that note, as someone entering the US in a few days, I wonder how long it'll be before they take DNA at US borders. They already take retina, photos and fingerprints.
(I'm not trying to minimize or legitimize this -- I find it very offensive and have planned my own travel to avoid visiting countries where I would be fingerprinted. I'm just pointing out that US-VISIT doesn't currently include a retina scan, at least not routinely at all ports of entry.)
