Daily Mail seem to have picked up on the story in the UK. The Daily Mail link provides a link to the FBI vault.
I'm intrigued to find that it is possible, after all this time, that there may have been a cover-up which concealed the finding of disks and their occupants. I wonder what else awaits in the FBI files.
Meanwhile, someone has compiled a video of all the most recent UFO and aerial pheomena from the mainstream news reports.