GO FOR IT, DERB! I usually rejoice in John Derbyshire's unfiltered Asperger's rants on race, and today's celebration of Enoch "Rivers of Blood" Powell started promisingly enough, with a declaration that "Powellite sentiments" -- segregation and expulsion of dark people, in case you didn't know -- "were brow-beaten out of the public square" via a "campaign of propaganda, brainwashing, and intimidation."