Open Thread Question: Did FDR Know the Pearl Harbor Attack Was Coming?

I’m not normally one who takes conspiracy theories seriously but I have a very open mind about the question: what did FDR know about the Pearl Harbor attack and when did he know it? When people I respect like Judge Andrew Napolitano say he believes that FDR “knew goddamn well” the Japanese were going to attack Pearl Harbor and he stood by and did nothing, that gets my attention.

This conspiracy theory, I think, is very different from what the 9/11 Truthers say about 9/11 or those who believe the government faked the moon landing. I’ll readily admit that I have a strong anti FDR bias so my judgment might be compromised. I do think that foreknowledge on FDR’s part is entirely plausible because from what I know about the man, he seems to have been a “the ends justify the means” kind of guy. Also consider that U.S. history has several examples of presidents and/or other high ranking officials lied in order to draw the nation into war (the Gulf of Tonkin incident comes to mind).

On this 71st anniversary of the attack, I’m wondering what you think. Is this a nutty conspiracy theory or does it have merit? Does anyone have anything in the way of proof one way or another? The floor is yours.