Historically, two-factor authentication is not a new concept but its use has become far more prevalent with the digital age we now live in. As recently as February 2011 Google announced two factor authentication, online for their users, followed by MSN and Yahoo.
Body worn video (BWV), also known as body cameras, is a video recording system that is typically utilized by law enforcement to record their interactions with the public or gather video evidence at crime scenes, and has been known to increase both officer and citizen accountability.
Scores of law enforcement agencies already use body-worn cameras, and calls for more have only grown across the U.S. after recent cases involving use of force have pitted the word of police officers against angry residents. recent federal survey of 63 law enforcement agencies using body cameras said nearly a third of the agencies had no written policy on the devices. (It is not known how many agencies overall currently use body cameras.).