Interesting piece of information so the NSA tracked him through his writing style from his numerous posts and emails and from trillions of writing styles...find it hard to believe that they got the real guy, for someone that knows a thing or two about anonymity we shall never hear from him in his capacity unless another pseudo name.
TBH Satoshi Nakamoto's identity at this point matters less, bitcoin is a decentralized currency which is doing fine with support from the devs team and miners not forgetting the crypto community.
article say too :
''More troubling, the American news site The Verge claims to have been contacted on August 25 by a person claiming to be the true Satoshi Nakamoto. "The government knows that I am, and it is very good like that, and the public does not know it, and I expect it to remain so," explained the mysterious interlocutor. unveil His own name.'''
and , structures like the NSA dispose several capacity that the public does not have and any product made public is first used by the army or similar organization a simple example internet , internet used by army and AFTER used by public . The world is like the human body there are organs of decision like the brain in the human body , the toe can move under the sock but sooner or later the eye or the brain will realize it