I found this part interesting - the FBI of course in discussing methods used to identify users have inadvertently revealed methods by which people can frustrate their efforts: QuoteBut the FBI helpfully lists several ways that Bitcoin users can protect their anonymity.  Create and use a new Bitcoin address for each incoming payment.  Route all Bitcoin traffic through an anonymizer.  Combine the balance of old Bitcoin addresses into a new address to make new payments.  Use a specialized money-laundering service.  Use a third-party eWallet service to consolidate addresses. Some third-party services offer the option of creating an eWallet that allows users to consolidate many bitcoin address and store and easily access their bitcoins from any device.  Individuals can create Bitcoin clients to seamlessly increase anonymity (such as allowing users to choose which Bitcoin addresses to make payments from), making it easier for non-technically savvy users to anonymize their Bitcoin transactions.Sounds about on the money - of course they missed out the obvious one which is paying for BTC in cash which gets around all these issues of bank accounts being traced. :-)V.