angry tapir writes "Facebook has proven to be one of the biggest dangers in keeping undercover police officers safe, due to applications such as facial recognition and photo tagging, according to an adjunct professor at ANU and Charles Sturt University. Mick Keelty, a former Australian Federal Police commissioner, told the audience at Security 2011 in Sydney that because of the convergence of a number of technologies undercover policing may be 'impossible' in the future."
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