Safely assuming that Satoshi Nakamoto is a pseudonym, why do you believe he (also, safely assuming, albeit I have another theory) choice that one as his moniker?
Japanese names are written family name first, thus Nakamoto Satoshi. Look at the first letter in the family name + first two letters of the given name = NSA.
Nakamoto means "central origin"
Satoshi means "clear-thinking; quick-witted; wise.", ie intelligent
Thus Nakamoto Satoshi can be interpreted as "Central Intelligent"
Thus I believe if he was not *from* the NSA or CIA, he was covertly referring to them in his choice of pseudonym.