Intelligence operations, such as this, don't use NDAs when performing contract work (at least not in any project I've ever seen). There's no reason for NDAs -

Intelligence operations, such as this, don't use NDAs when performing contract work (at least not in any project I've ever seen). There's no reason for NDAs - they have a robust, developed clearance infrastructure that assures a much stronger legal commitment than any flimsy NDA can ever offer. As such, work like this is ALWAYS covered under classified rules. Second, when you go through the clearance process, the consequences and nature of the legal ramifications are burned into you by the documentation and people you have to deal with. Hence the suspicion that the original claim is bogus. Either that, or the guy who made the claim will most likely be brought up on some very serious charges.