A former Navy pilot says he's seen hundreds of UFOs and that they're a security threat. Lieutenant Ryan Graves told CBS' "60 Minutes" that he saw unidentified vessels flying off the coast of Virginia over the course of two years starting in 2019. Graves said it's possible the UFOs are spy devices operated by foreign powers or even secretly by the U.S. The Pentagon has been open about verifying the authenticity of some UFO photos and video taken by military pilots. Next month, U.S. military and intelligence organizations are required to release what they know about UFOs thanks to part of the coronavirus stimulus signed last year by President Trump.