The nation has just witnessed yet another violent attack allegedly committed by a white supremacist. According to a study by the Anti-Defamation League, white extremists killed nearly three times as many people in the United States between 2009 and 2018 as Islamic extremists did. Last weekend's shooting at a synagogue outside San Diego adds to the toll of dead and wounded.
Is white supremacy a growing movement? Or is it just becoming more visible? How is social media affecting these so-called "lone wolf" attacks? And what is law enforcement doing to combat the threat?
Michael German is a retired FBI agent and a fellow in the Liberty and National Security program at the Brennan Center for Justice.
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