On 1-27-41, Joseph C. Grew (US Ambassador to Japan) secretly cabled Washington DC, with info, gathered from a Peruvian diplomat, that Japan was considering a surprise attack on Pearl Harbor. No one at the time, believed the info and nothing was done about the cable. So it is clear, there was info sent to Washington, long before the attack. With this kind of a cable, there must have been rumors flying around. In a 1996 History Channel interview, Chester Nimitz jr, said his father did have knowlege of a possible attack, and didn't want to be in command when it happened. This is why Chester Nimitz, turned down command of the USN's Pacific Fleet. Jumping over other senior officers was just a tale Nimitz told. He was happy to take the command after the war had begun......Happy Pearl Harbor Day!