I feel its america.also china but they still trying to solve the bitcoin banned issue to thier country.
Yup you are right the America is now showing the great interest in the bitcoin at this time because all the people are having the bitcoin fun and the value of the bitcoin is now increasing more an more I can see the positive growth of the bitcoin for the very slow price and the valuable income of the bitcoin I know the fast growth of the bitcoin will give you the real value and this is the reason why the bitcoin is increasing.
Well America is not the only country because now a lot of the other countries are trading with the bitcoin and the bitcoin is the business for them. Bitcoin is now famous enough to gain the huge and the best attention of the countries and the bitcoin price will increase more and more if the all big and the well known countries like the china and the Japan and the Canada will start trading in the bitcoin.