Russia, China and Iran don’t have a First Amendment, and their governments regularly clamp down on free speech. So why would we want to end American protection of the open Internet and transfer it to Moscow, Beijing and Tehran instead? On Oct. 1, the Obama administration plans to end the U.S. Government contract with the Internet Corporation for Assigned Names and Numbers, or ICANN. Doing so would kick off a transition that could irreparably harm the open Internet, leading to censorship abroad that could, quite realistically, lead to censorship right here in the United States. Under this transition of Internet...