Can a technology designed to enhance the free exchange of ideas and information be turned into an instrument for limiting that freedom, and for strengthening political tyranny at the expense of individual liberty? Sadly, the histories of the printing press, radio, and television suggest the answer is yes—and over the past decade, the Internet may have been following the same sinister path. Taken as a whole, the Net represents a more complex technology than its analog predecessors. It also enjoys a far larger mass audience, with many more direct portals for instant individual input—and its scale is global. It is this unprecedented immensity and accessibility that repressive governments exploit in seeking to use the Internet for their own ends.