Which you're free to so as long as you've never held a security clearance and/or signed the NDA. The only exceptions are material covered under the Atomic Ener

Which you're free to so as long as you've never held a security clearance and/or signed the NDA. The only exceptions are material covered under the Atomic Energy Act of 1954, which has never really been legally tried (it would probably fall apart — how is anyone supposed to know they have a duty to protect a document that says "Restricted Data"?), and the identities of undercover intelligence officers.