The tension between free speech and social stability has been a central concern throughout American history. In the 1960s that concern reached a fever pitch with the anti-Vietnam War movement. When anti-war sentiment "invaded" American schools, official resolve to retain order in the classroom vied with the rights of students to speak freely. A key event in that face-off was the Supreme Court decision in Tinker v. Des Moines.

In 1965, five public school students in Des Moines-including John Tinker, a Methodist minister's son-protested the Vietnam War by wearing black armbands in defiance...

Americans value privacy as one of their most cherished rights, yet the word "privacy" isn't even mentioned in the U.S. Constitution. It took the Supreme Court's ruling in Griswold v. Connecticut (1965) to bestow constitutional protection upon this right. That remains one of the Court's most hotly debated rulings and led directly to an even more controversial decision in Roe v. Wade (1973). John Johnson's masterly critique of Griswold--which observes its 40th anniversary on June 7, 2005--reminds us once again of its crucial impact on both American law and society.

Johnson explores...