The language police have made it a crusade to expurgate language that could be offensive to some from American schoolbooks. “On the theory that a proper K-12 education should upset no one and affirm all, elaborate protocols now exist for the content of classroom materials. Anything even remotely sexist is verboten. Banished from respectable texts are such troublemakers as ‘babe,’ ‘chick’ and ‘co-ed,’ but so too are solid citizens like ‘actress,’ ‘brotherhood’ and ‘cattleman.’ Women are not to be portrayed as frightened, indecisive or vain; men as too assertive, analytical or violent. As for race and ethnicity, perish the stereotypical thought that Asians are studious and hardworking, that blacks excel in sports and music, or that Jews ever lived in tenements…” A new book reveals how far the rewriting goes.