The US Navy says it has classified documents and video related to a 2004 UFO encounter and releasing those materials would threaten national security. From a report: The Pentagon has Top Secret-classified briefings and a Secret-classified video about an infamous UFO incident, the U.S. Navy said in response to a public records request. The files concern the 2004 encounter between the USS Nimitz and a with strange unknown aerial objects. In 2017 and 2018, three videos of bizarre aircraft taken by Navy pilots from their fighter planes made national news. In December 2017, The New York Times ran a story about Navy pilots who intercepted a strange object off the coast of San Diego on November 14th, 2004, and managed to shoot video of the object with their F-18’s gun camera. In September of 2019, Motherboard reported that the Navy confirmed the videos contained footage of “unknown aerial phenomena.” In response to a Freedom of Information Act request sent by researcher Christian Lambright seeking more information on the incident, the Navy said it had “discovered certain briefing slides that are classified TOP SECRET. A review of these materials indicates that are currently and appropriate Marked and Classified TOP SECRET under Executive Order 13526, and the Original Classification Authority has determined that the release of these materials would cause exceptionally grave damage to the National Security of the United States.” “We have also determined that ONI possesses a video classified SECRET that ONI is not the Original Classification Authority for,” the letter continued. Read more of this story at Slashdot.