Who would ever want to trade [your] Bitcoins for dollars?
The taxman.
Too bad for them though, since we weren't trading them for dollars.. we we're trading them for tulips.. err .. tethers.
Quote from: http://coinmarketcap.com/assets/tether/
Total Supply
64,950,871 USDT
64,950,871 USDT
seen here a field of 65 million tethers growing in their natural environment:

that should take care of any pesky auditing issues
