Outside the gates, the caste rules were clear. Blacks and whites lived separately, ate separately, studied separately, socialized separately, worshipped separately, and, for the most part, worked separately. At Langley, the boundaries were fuzzier. Blacks were ghettoed into separate bathrooms, but they had also been given an unprecedented entrée into the professional world. Some of Goble’s colleagues were Yankees or foreigners who’d never so much as met a black person before arriving at Langley. Others were folks from the Deep South with calcified attitudes about racial mixing. It was all a
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