Thanks to an ingenious constitution, their geographical isolation from potential rivals, and a magnificent endowment of natural resources, the Americans managed to build an extraordinarily powerful state, a fact that became obvious during World War II. They accomplished this, however, by severely restricting their government's capacity to control everyday life, whether through the dissemination of ideas, the organization of the economy, or the conduct of politics. Despite the legacy of slavery, the near extermination of native Americans, and persistent racial, sexual, and social discrimination, the citizens of the United States could plausibly claim, in 1945, to live in the freest society on the face of the earth.