Emily Crose, ex-hacker for the National Security Agency (NSA), ex-Reddit moderator and current network threat hunter at a cybersecurity startup, wanted to be in Charlottesville, Virginia, to join in the protest against white supremacists in August.

Three people died in that protest. One of Crose’s friends was attacked and hurt by a neo-Nazi.

As Motherboard’s Lorenzo Franceschi-Bicchierai tells it, Crose was horrified by the violence of the event. But she was also inspired by her friend’s courage.

Her response has been to create and train an Artificial Intelligence (AI) tool to unmask hate groups online, be they on Twitter, Reddit, or Facebook, by using object recognition to automatically spot the symbols used by white nationalists.

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