The U.S. has now collected 510 reports of unidentified flying objects, many of which are flying in sensitive military airspace. That's according to a declassified intelligence report summary released Thursday. While there's no evidence of extraterrestrials, they still pose a threat. The Office of the Director of National Intelligence says that's because the events continue to occur in restricted or sensitive airspace, highlighting possible concerns for flight safety or spying. The classified version of the report addresses how many of those objects were found near locations where nuclear power plants operate or nuclear weapons are stored.
