UFOs and their pilots might not be 'extra-terrestrials' from a distant planet at all, but 'spiritual entities' who have inhabited Earth for as long as humanity itself. At least, that's the 'supernatural' theory Fox News vet and one-time MSNBC host Tucker Carlson put forward this week on comedian Joe Rogan's podcast 'There's a ton of evidence that they're under the ocean and under the ground,' Carlson told Rogan's listeners during the show's usual, sprawling, three-hour-long chat format, adding: 'They've been here for a long time.' -snip- 'They're from here and they've been here for thousands of years,' Carlson said, 'whatever...