Since the terrorist attacks of Sept. 11, Littleton, Mass.-based Viisage and rivals have stepped into the spotlight as national security becomes a top priority for lawmakers and airports. Viisage's technology uses biometrics, or the digital analysis of characteristics such as facial structure, fingerprints and iris patterns taken through cameras or scanners. The data is matched, for example, to profiles in databases of suspected terrorists. Although the technology has been heralded for its importance in capturing alleged terrorists, it has also been criticized for its potential inaccuracy.
5 tips to keep your data safe on Facebook: Hide your life from Facebook, while still posting about your life on Facebook.
6 ways to delete yourself from the internet: Finally ready to get off the grid? It's not quite as simple as it should be, but here are a few easy-to-follow steps that should point you in the right direction.
Discuss: CEO of face-recognition firm resigns
Be respectful, keep it civil and stay on topic. We delete comments that violate our policy, which we encourage you to read. Discussion threads can be closed at any time at our discretion.