Importantly, we need real financial privacy because the goods and information cost money.  When you buy or sell or communicate, money is going to change hands.  If they can track the money, they can track the trade and the communication, and we lose the privacy involved.

John Gilmore
A transcript of remarks given at the First Conference on Computers, Freedom, and Privacy, March 28, 1991
[Jews in the Attic Test again.–Joe]