In July of 1999, 10% of the African-American pop­u­la­tion in Tulia, Texas, a small town of 5,000 in the Texas Panhandle, was arrest­ed on drug charges sole­ly on the tes­ti­mo­ny of a sin­gle under­cov­er offi­cer. The arrests of 46 peo­ple, 39 of them black, result­ed in 38 con­vic­tions for var­i­ous drug charges with sen­tences of up to 90 years […]