He worked as a journalist and photographer for the Oakland Tribune, and he was a consultant on the Pacific War for the BBC and for Asahi and NHK Television in Japan. In 1986, he resigned his position at the Tribune to devote himself full-time to the extensive and painstaking research through the Freedom of Information Act that was necessary to produce his book, Day of Deceit, and other work. He is also the author of the book, George Bush: His World War II Years.