You can actually test that regulators are doing exactly this. There are a few digital currencies which (attempt to) protect the anonymity of all transactions. M

You can actually test that regulators are doing exactly this. There are a few digital currencies which (attempt to) protect the anonymity of all transactions. Monero is the most popular such coin. Go try and exchange some directly with fiat currency. You'll find that it's quite a bit more difficult than with bitcoin. Most legitimate exchanges don't take Monero to stay within anti-money laundering regulations.