![Joe Tidy on Twitter: "Some of documents we've seen are marked as NATO SECRET - the second highest security label. I also learned that the highest rating of NATO classification has a Joe Tidy on Twitter: "Some of documents we've seen are marked as NATO SECRET - the second highest security label. I also learned that the highest rating of NATO classification has a](https://pbs.twimg.com/media/FbFBQ9DWQAAPWah.jpg)
Joe Tidy on Twitter: "Some of documents we've seen are marked as NATO SECRET - the second highest security label. I also learned that the highest rating of NATO classification has a
![Craig on Twitter: "@alexboutilier @pburka I knew someone whose favorite classification+caveats was "Cosmic Top Secret Atomal"." / Twitter Craig on Twitter: "@alexboutilier @pburka I knew someone whose favorite classification+caveats was "Cosmic Top Secret Atomal"." / Twitter](https://pbs.twimg.com/media/CKceqEqUMAEd96f.jpg)
Craig on Twitter: "@alexboutilier @pburka I knew someone whose favorite classification+caveats was "Cosmic Top Secret Atomal"." / Twitter
![Aleksi Roinila 🇫🇮🇪🇺🤝🇺🇦 on Twitter: "#DidYouKnow that @NATO is a keeper of cosmic secrets? The highest security classification in the Alliance, even above "Top Secret", is called #CosmicTopSecret. https://t.co/1lCII12PjP" / Twitter Aleksi Roinila 🇫🇮🇪🇺🤝🇺🇦 on Twitter: "#DidYouKnow that @NATO is a keeper of cosmic secrets? The highest security classification in the Alliance, even above "Top Secret", is called #CosmicTopSecret. https://t.co/1lCII12PjP" / Twitter](https://pbs.twimg.com/media/D9WIbfwWkAAaSoB.jpg:large)