UFOs exist, and might come from beyond Earth, the U.S. said. Will that encourage conspiracy theorists?

On June 25, the Department of Defense released an official report on Unidentified Flying Objects (UFOs). The report does not tell us much of anything, except that these objects remain unidentified. Nevertheless, for the department to officially acknowledge that we cannot explain what these objects are or how they move breaks a long-running taboo on taking UFOs seriously.