Once the government can demand of a publisher the names of the purchasers of his publication, the free press as we know it disappears. Then the spectre of a government agent will look over the shoulder of everyone who reads. … Fear of criticism goes with every person into the bookstall. The subtle, imponderable pressures of the orthodox lay hold. Some will fear to read what is unpopular, what the powers-that-be dislike. … fear will take the place of freedom in the libraries, book stores, and homes in the land.
