Butt Identification, and Other Awkward Biometrics

Biometrics are everywhere. Fingerprint scanners are a standard feature in the newest smartphones, DNA testing is common, and facial recognition is getting more and more terrifyingly reliable. But there are many biometric applications still lurking on the fringe, and some of them get really, really personal. »6/18/15 2:04pm6/18/15 2:04pm