with ufos. our brian todd has the story. >> reporter: it's called the vault, the fbi's digital reading room where any of us can go online and view the beau yo's most looked at disks. >> it's about flying saucers and it relates to an allegation that we heard from a third hand saying the air force found a couple of saucers out in the new mexico desert. >> reporter: can't be, most people want to read about machine gun kelly and al capone, right? >> you would think so. but this has gotten over 1 million views since we put it up two years ago. al capone doesn't make the top 50. >> reporter: an air force