Did you hear that ripping sound? Two liberal icons known by their silly stage names — Mahatma Gandhi and Malcolm X — have just been torn down from their sanctified perches thanks to a pair of massively researched but finally damning new biographies. Both men, it turns out, were at pains to take on phony identities. Each hid his homosexuality, each was racist, each took pains to manufacture favorable coverage, each was driven by petty hatreds instead of shining ideals — each of these supposedly principled figures was an out-and-out phony. Perhaps the most delicious irony of this myth-busting is...