To keep a top secret security clearance, do you have to agree that your mail, email and telephone calls may be monitored if your superiors feel it is necessary? - Quora
![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
![Jan Lefner on Twitter: "Petr Pavel má nejvyšší prověrku NATO Cosmic Top Secret Atomal Pro mě je důvěryhodný dost. https://t.co/COaNjNYKqB" / Twitter Jan Lefner on Twitter: "Petr Pavel má nejvyšší prověrku NATO Cosmic Top Secret Atomal Pro mě je důvěryhodný dost. https://t.co/COaNjNYKqB" / Twitter](https://pbs.twimg.com/media/FSqoxqgX0AAHGuj.jpg:large)