The Deep South of the late 1950's was another country: a land of lynchings, segregated lunch counters, whites-only restrooms, and a color line etched in blood across Louisiana, Mississippi, Alabama, and Georgia. White journalist John Howard Griffin, working for the black-owned magazine Sepia, decided to cross that line. Using medication that darkened his skin to deep brown, he exchanged his privileged life as a southern white man for the disenfranchised...