Alien "shadow people" seen at U.S. nuclear weapons bases

Renowned UFO researcher George Knapp recently interviewed former security personnel for U.S. nuclear weapons bases who claim that, in addition to occasional visits from apparent ET spacecraft, the bases were infiltrated by mysterious "shadow people." Also, the top U.S. spy chief says UFOs encountered by military personnel may be extraterrestrials. Link to George Knapp article: I-Team: Congress renews interest in UFO sightings, wants to create new office to investigate incidents | KLAS (8newsnow.com) Link to NY Post article: UFOs buzzing US warships may be aliens: Top spy chief (nypost.com)