Book excerpt: The strength of the right-to-die movement was underscored as early as 1991, when Derek Humphry published Final Exit, the movement's call to arms that inspired literally hundreds of thousands of Americans who wished to understand the concepts of assisted suicide and the right to die with dignity. Now Humphry has joined forces with attorney Mary Clement to write Freedom to Die, which places this civil rights story within the framework of American social history. More than a chronology of the movement, this book explores the inner motivations of an entire society. Reaching back to the years just after World War II, Freedom to Die explores the roots of the movement and answers the question: Why now, at the end of the twentieth century, has the right-to-die movement become part of the mainstream debate? In a reasoned voice, which stands out dramatically amid the vituperative clamoring of the religious right, the authors examine the potential dangers of assisted suicide - suggesting ways to avert the negative consequences of legalization - even as they argue why it should be legalized.