Use of facial recognition technologyNightline seeks out the expertise of Dimitris Metaxas, professor of computer science and affiliate member of Rutgers Center for Cognitive Science, for its investigative report on Madison Square Garden's use of facial recognition technology to ban attendees from events. Metaxas explains to Nightline reporters how the technology works, and then says that given the advances to cameras and computers, it's likely that facial recognition capabilities "will become cheaper and usable by anybody." For more information regarding this, check here