Mr. Halperin was, as WFB put it, best known "as the man who is suing Henry

Kissinger," his former boss: Mr. Halperin's phone had been one of a dozen tapped in 1969 in an effort to find out who was leaking information about the secret bombing of Cambodia. A lively show, beginning with the specifics of Mr. Halperin's case and moving to general questions of secrecy, privacy, and national security. WFB: "The Congress of the United States, when it set up the Central Intelligence Agency, proceeded on an assumption that was not then challenged, and has only fairly recently been challenged, which is that you can't have a Central Intelligence Agency that goes on the Today show every morning to announce what it's up to."