Lethal Weapon Designed to Leave No Trace (S2) | Secrets Declassified with David Duchovny

In 1957 West Germany, a covert plot unfolds as operatives develop a lethal mist designed to eliminate a target without leaving a trace, risking escalation during the Cold War. See more in Season 2, Episode 5, "Bizarre Weapons." New Episodes Tuesdays 10/9c Stay up to date on all of your favorite The HISTORY Channel shows at http://www.history.com/schedule. #SecretsDeclassified Subscribe for more Secrets Declassified and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Check out exclusive The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Instagram -   / history   TikTok -   / history   From black ops and bizarre experiments to deadly cover-ups and nefarious gadgets, David Duchovny pulls the curtain back on all the government secrets in modern history we always suspected, but were never given the answers to. Through the strange and shocking things countries the world over - and those who work for them - have done in the name of national interest, we'll investigate the explosive evidence from newly declassified files that will finally shine a new light on what's really going on deep in the shadows. The HISTORY® Channel, a division of A+E Global Media, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @history on Instagram, Twitter, Facebook, YouTube and TikTok.