"Their prejudice allowed white Southerners to look the other way when blacks were denied their most basic human rights, and it encouraged the worst of them to engage in unspeakable acts of cruelty and violence."
Unspeakable
"Their prejudice allowed white Southerners to look the other way when blacks were denied their most basic human rights, and it encouraged the worst of them to engage in unspeakable acts of cruelty and violence."