Fingerprint scanners-- they're perhaps the most significant security feature to ever be put on a cell phone. How do they work and are they really as safe as they sound? Anthony has the answers. Read More: How Fingerprint Scanners Work http://computer.howstuffworks.com/fingerprint-scanner.htm "Computerized fingerprint scanners have been a mainstay of spy thrillers for decades, but up until recently, they were pretty exotic technology in the real world." Your fingerprint at the scene of a crime doesn't prove anything http://io9.com/5900223/just-how-incriminating-is-a-fingerprint-really "We've all seen police dramas where triumphant suspects are appalled to learn that their fingerprint is on, say, the underside of the door handle of the victim's car. But what qualifies as a 'matching' print? And is the system always perfect, or does it make mistakes? Take a look at how incriminating your fingertips actually are." The Boring and Exciting World of Biometrics http://www.pbs.org/wgbh/nova/next/tech/biometrics-and-the-future-of-identification/ "Biometric identification has a faint whiff of the future about it, though what that future looks like depends entirely on your perspective." How Fingerprinting Works http://science.howstuffworks.com/fingerprinting1.htm "Fingerprinting is one form of biometrics, a science that uses people's physical characteristics to identify them. Fingerprints are ideal for this purpose because they're inexpensive to collect and analyze, and they never change, even as people age." Why do we have fingerprints? http://science.howstuffworks.com/life/human-biology/why-do-we-have-fingerprints.htm "Fingerprints follow us our entire lives. Each little smudge singles us out as distinct individuals among billions of other human beings -- or at least that's what we've always been told." Twins and Fingerprints http://www.nytimes.com/2009/10/06/science/06qna.html "Why do identical twins have different fingerprints? Why do we have fingerprints to begin with?" Watch More: Passwords Suck: http://www.youtube.com/watch?v=VldMq4NyKWY Biometric Security Fail: http://www.youtube.com/watch?v=WTAunvZkk3c Don't Open This Text: http://www.youtube.com/watch?v=qrcklJojQ_o ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Anthony Carboni on Twitter http://twitter.com/acarboni Laci Green on Twitter http://twitter.com/gogreen18 Trace Dominguez on Twitter http://twitter.com/trace501 DNews on Facebook http://facebook.com/dnews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com