Exactly, every single currency in the world could be used for illegal activities. The most valuable and and the most accepted are also most used for illegal activities, including US dollar and also Bitcoins. That was the big problem at the begininig, and also in a way is now, because Bitcoin was often accused as a criminal currency.
Agreed. Even bitcoin now are being used for illegal activities. Even terrorist do. The problem lies in how to stop them. This is a mouse and cat game for every government in the world. Criminals will always find ways to exploit of both fiat and bitcoin to their advantage. Terrorist groups sometimes move money via otherwise legal means such as charities, businesses, banks and alternative institutions. Again, the government should make ways to counter this because in the end, we are all victims here.