No its not possible, because buy and sell bitcoin , its is hide exchange, the goverment cant control, active delinquency will develop!!!!
How does the government control the flow of cash? Criminals use cash more often. Are you suggesting we ban cash? Lol. You repeat a fake that is distributed by governments and bankers. I do not believe that bitcoin will be an international currency. That isn't possible. Bitcoin can only be a national currency that will exist in parallel with Fiat.