Exposing the Dark Secrets of the CIA: Undercover History Updates (Full Episode) | Nat Geo

It's the Cold War's dirty little secret: a terrifying account of the CIA's efforts to expose unknowing members of the public to biological agents, hallucinogenic drugs and psychological techniques aimed at mastering the art of mind control. S1, E2 | Undercover History Updates Explore the World with National Geographic subscriptions: http://natgeo.com/ytngmagazine Watch more Lost Cities Revealed With Albert Lin on Disney+: https://www.disneyplus.com/series/det... Watch more Trafficked with Marianna Van Zeller on Disney+: https://www.disneyplus.com/browse/ent... Watch more A Real Bug’s Life on Disney+: https://www.disneyplus.com/series/det... Watch more Arctic Ascent with Alex Honnold on Disney+: https://www.disneyplus.com/series/det... Watch more Queens on Disney+: https://www.disneyplus.com/browse/ent... ➡ Subscribe: https://on.natgeo.com/4p5A0D6 ➡ Get more Nat Geo Full Episodes: https://on.natgeo.com/3V5ZfHI ➡ Get wild with Nat Geo Animals Full Episodes: https://on.natgeo.com/3V2EOLO And check out more National Geographic series and specials here: ➡ Disney Plus: https://on.natgeo.com/3q6on5p ➡ Hulu: https://on.natgeo.com/3Qor0Ko ➡ NGTV: https://natgeo.com/tv ➡ ABC: https://abc.com #FullEpisode #UndercoverHistoryUpdates #NationalGeographic About National Geographic: National Geographic is the world's premium destination for critically acclaimed storytelling around science and exploration. Discover amazing wildlife, ancient civilizations, hidden worlds, and the incredible wonders of our Earth. Through world-class scientists, photographers, journalists, and filmmakers, Nat Geo inspires fans of all ages to connect with, explore, and care about the world. Get More National Geographic: Official Site: https://nationalgeographic.com Instagram:   / natgeo   Facebook:   / natgeo   Threads: https://threads.com/@natgeo X: https://x.com/NatGeo LinkedIn:   / national-geographic   TikTok:   / natgeo   Reddit:   / nationalgeographic   Pinterest:   / natgeo   Exposing the Dark Secrets of the CIA: Undercover History Updates (Full Episode) | Nat Geo    • Exposing the Dark Secrets of the CIA: Unde...   National Geographic    / natgeo