The Protection That Dissolved: United States v. Miller and the Constitutional Precondition for Programmable Money
On April 21, 1976, the Supreme Court held seven to two that a bank depositor has no Fourth Amendment interest in his own financial records. The reasoning was that checks, deposit slips and account statements are the business records of the bank rather than the depositor's private papers, and that information voluntarily conveyed to a third party loses its constitutional protection even when revealed on the assumption it would be used only for a limited purpose. Justice Brennan dissented on the ground that banking is functionally obligatory in modern commerce and that a conveyance one cannot avoid is not voluntary. He lost. United States v. Miller became the origin of what is now called the third-party doctrine, extended to telephone records three years later and standing as the constitutional foundation for the government's access to essentially all intermediated transactional information. This essay traces the decision from the Bank Secrecy Act that produced the records through California Bankers v. Shultz, Miller itself, Smith v. Maryland, and the partial qualification in Carpenter v. United States — and argues that Miller is the unexamined precondition for the architecture this catalog has documented across its work on programmable money. If financial records held by intermediaries carry no constitutional protection, and a cashless system makes every transaction intermediated, then no financial act is constitutionally private, and nothing had to be repealed to reach that result.