During the 1960s, when Ernest D. Rose was cataloging and analyzing a half-million feet of 35mm wartime Nazi newsreels in the basement of the Hoover Institute during his research at Stanford, he ran across a pile of audio discs that had been gathering dust for many years. They had been made on a home recorder and donated to the University. They turned out to be a record of all the radio news programs that had been broadcast during the first eight hours of the attack on Pearl Harbor. It was…