"The crack epidemic of the 1980s and 1990s is arguably the least examined crisis in American history. Beginning with the myths inspired by Reagan's war on drugs, journalist Donovan X. Ramsey's exacting work exposes the undeniable links between the last triumphs of the Civil Rights Movement and the consequences we live with today-a racist criminal justice system, continued mass incarceration and gentrification, and increased police brutality. When...