Crossing over the Line describes the folly of the Mann Act of 1910--a United States law which made travel from one state to another by a man and a woman with the intent of committing an immoral act a major crime. Spawned by a national wave of "white slave trade" hysteria, the Act was created by the Congress of the United States as a weapon against forced prostitution. This book is the first history of the Mann Act's often bizarre career,...