Will be interesting to see how governments across the world respond to the rise of (unregulated) Bitcoin.
If bitkoyn will grow unregulated in its value, and then also sharply fall in price, and this movement will be repeated, governments of different countries will be forced to restrict bitokoy in circulation in order to protect their economies from unbalancing. Therefore, in order to grow and develop as a financial instrument integrated into the economy of most countries, we need to ensure that bitkoyn grows smoothly and its volatility is not so great.
Money is a economic good, like anything else. Economic goods are traded on markets.
Controlling markets isn't capitalism. If you're in favour of communism, where markets and economics are all controlled, Bitcoin is not for you.
Talking about governments controlling Bitcoin or any other cryptographic currency is futile, they were designed to be resistant to interference. Capital is the strongest force that can be employed in the Bitcoin market, not government stealing or violence. That's what makes Bitcoin so valuable, and also so controversial.