We the people seem to have the freest book trade in the world. Certainly we have the biggest. Cruise the mighty Amazon, and you will see so many books for sale in the United States today as would require more than four hundred miles of shelving to display them—a bookshelf that would stretch from Boston’s Old North Church to Fort McHenry in South Baltimore.
Surely that huge catalog is proof of our extraordinary freedom of expression: The US government does not ban books, because the First Amendment won’t allow it. While books are widely banned in states like China and Iran, no book may be forbidden by the US government at any level (although the CIA censors books by former officers). Where books are banned in the United States, ...