Showboat or not, he’s certainly shown himself to be master of the Twitter tease. But teasing what? It’s not clear. He could just be messing with us. Witness: Comey is “Reinhold Niebuhr.” This we now know for sure after the former FBI director capped off a series of cryptic tweets with a photo of himself from the account that has long been suspected as his nom de plume. The world has suspected that the Reinhold Niebuhr account, now with the handle @FormerBu, was Comey since the end of March, .....