Bitcoin is the most disruptive invention since the internet, and now an ideological battle is underway between fringe utopists and mainstream capitalism. Bitcoin''s early pioneers sought to blur the lines of sovereignty and the financial status quo. After years of underground development Bitcoin grabbed the attention of a curious public, and the ire of the regulators the technology had subverted. After landmark arrests of prominent cyber criminals Bitcoin faces its most severe adversary yet, the very banks it was built to destroy.