To do with US national security agency, we know US is an advanced and a technological super power giant but this is different, I'd say they are doing
The opposite of keeping their people fat and safe if they were actually behind Bitcoin and blockchain technology, if you have doubts then either buy
As many as you can afford to or get out before they come for you .
Bitcoin is using the internet which was invented by the US army!!!!
so what? you can use SHA-256 to encrypt everything you want, the mathematic is well known.
banks and govs will wait until they're sure in the success of bitcoin, and then will jump on the train.
and it will be too late to ruin it.