Interesting.
"The real danger of digital money, above the vulnerabilities in its processes, is the inability of governments to exert control over financial flows, this could lead to a distortion of the main mechanisms of control and taxation, bringing total chaos in a market already in disarray"
http://www.infosecisland.com/blogview/21290-FBI-on-Bitcoin-Cybercrime-Opportunity-and-Digital-Choice.html?utm_source=ProvideSecurity&utm_medium=twitter