Nazis for New Year

If you use social media, you’ve met neo-Nazis and their allies.  They’re everywhere, and they’re about as charming as you’d expect.  And if you haven’t met them personally, you’ve probably met one of their avatars. The con goes like this: The impersonator lifts an online photo of a Jew, Muslim, African-American or other minority — typically one with clear identifying markers, like a yarmulke-clad Hasid or a woman in hijab. Using that picture as a Twitter avatar, the bigot then adds ethnic and...