These are all speculation, satoshi nakamoto created bitcoin in the shadow it's been years since its creation how did nsa found out that it was him and why did it took a long time for them to find out who satoshi nakamoto is. I think he remains hidden in the shadow with a lot of bitcoin on hand.
in the article it is said that nasa did this to be sure that it was not a country that was create the bitcoin and why now? I think because it is beginning to grow in size it should not forget that the dollar is controled by the FED and dollar is a main of all other money of planet bitcoin too for buy bitcoin you need dollar and i think he no will not give that control a another country , FED based in usa , NSA based in usa