Few movie stars have been more exalted than Tom Hanks. You'd never expect a guy with his nice-guy branding to get a strong slap in the face in the political arena. But Hanks penned a "guest essay" for The New York Times lecturing on racism, which opened him up for a shaming from the left. On June 4, Hanks boasted about how he bores people at parties with his historical knowledge but lamented growing up in the schools of Oakland and never hearing a word about the Tulsa Race Massacre of 1921. It was "systematically ignored, perhaps because it was...