KEY TERMS: CIVIL LIBERTIES/CIVIL RIGHTS (Underlined terms have appeared on the multiple choice sections of past released AP exams) Civil Liberties: personal freedoms, e.g., speech, assembly, religion. Civil Rights: protections against discrimination. Clear and present danger doctrine: judicial interpretation of Amendment 1 that government may not ban speech unless such speech poses an imminent threat to society De facto segregation: segregation ?by fact,? i.e., segregation that results from such factors as housing patterns rather than law. De jure segregation: segregation by law, i.e., segregation that is required by government. Double jeopardy: being prosecuted twice for the same offense. Banned by Amendment 5.