LED-powered 'privacy visor' thwarts facial recognition

Worried that your face is being detected and recorded on everything from security cameras to Google Glass? Don these infrared-emitting glasses to prevent your face from being recognized, and your only worry will be how dorky you look.The "privacy visor," created by associate professor Isao Echizen at Japan's National Institute of Informatics, use bright, near-infrared LEDs to blast cameras with li...