You would have to believe that this was a giant conspiracy by some large group in the US Government, and then believe that nothing has leaked out of this conspiracy. Could be. Other option is use Occam's Razor - simplest explanation is usually correct. Why not an individual genius that was smart enough to want to preserve privacy? It's not like bitcoin is perfect and flawless. It is very imperfect and new flaws are discovered on regular basis. Sounds like something an individual genius could have created.

I distrust the idea that the US Government could or would create something so useful.

STEEM On !!

Dave