Houston was Boomtown USA in the 1970s, growing through tremendous immigration of people and through frequent annexation of outlying areas. But in the shadow of the high-rise "petropolis" was another city ignored by and invisible to Houston municipal boosters and the national media. Black Houston, the largest black community in the South, remained largely untouched by the benefits of the boom but bore many of the burdens. Robert D. Bullard systematically...