Law enforcement officials, child-safety groups, abuse survivors and some computer scientists praised the moves. In statements provided by Apple, the president of the National Center for Missing and Exploited Children called it a “game changer,” while David Forsyth, chairman of computer science at the University of Illinois at Urbana-Champaign, said that the technology would catch child abusers and that “harmless users should experience minimal to no loss of privacy.”But other computer scientists, as well as privacy groups and civil-liberty lawyers, immediately condemned the approach.Other tech companies, like Facebook, Google and Microsoft, also scan users’ photos to look for …
