Find a source for that nsa story besides 'cryptobang' where any troller can pay 1 btc to have some dumb story written.
In fact the crypto code in monero comes from DJB the renowned cryptographer who is as close to a mortal enemy of the NSA as you will ever find.
The story is ridiculous. It's good trollbait though. If anyone cites it we know they are trolling and not doing any actual research.