Oppie—“A very mysterious and delphic character.” Interview with Kai Bird, co-author of American Prometheus - Bulletin of the Atomic Scientists

Oppie—“A very mysterious and delphic character.” Interview with Kai Bird, co-author of American Prometheus - Bulletin of the Atomic Scientists: Kai Bird, one of the co-authors of "American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer"—which 25 years to complete—explains why he once described biography as: “The hardest form of history. And the most expensive.”