Won't be long before they're paying Lockheed Martin in bitcoin, just you wait ...
They will have to buy them on the market first.
When the U.S. goes bankrupt, they are going to regret having sold enough bitcoin to pay off the national debt, for a present value similar to filling up one SR-71's fuel tank.
They'd just be like: "fuck it, let's take those 144k from Ulbricht already".