1. A system comprising: a database comprising broadcast identifiers associated with people; and a facial recognition system operable on a processor that: receives a first image comprising a first face said image being taken by a first user; receives a first broadcast identifier captured when said first image was taken; determines a first set of candidates for facial recognition from said database based on said first broadcast identifier; performs facial recognition on said first image to match said first image to one of said first set of candidates; receives a second image comprising a second face, said second image taken by a second user; receives a second broadcast identifier captured when said second image was taken; determines a second set of candidates for facial recognition from said database based on said second broadcast identifier; and performs facial recognition on said second image to match said second image to one of said second set of candidates.