[Mr. Silverback]

The extent of the success of the Japanese attack need not have been predicted for the “Roosevelt knew” hypothesis to be entertained, only the likelihood that Roosevelt may have wished for the Japanese clearly to strike first.

So, if he "knew" then he could have gone to Congress with evidence of a Japanese attack, but didn't do so. Do you really think that makes sense?

Tell you what...Go ahead and post here any actual evidence you have that FDR knew in advance that the Japanese planned to attack Pearl Harbor. Let's see it.

[Philo-Junius]

You misunderstand me; it is not my position that Roosevelt knew the Japanese had targeted Pearl Harbor, only that he knew a Japanese military response against the U.S. was approaching certainty.

I would argue that he discounted the likelihood of an attack on Pearl Harbor, since it was believed to be too shallow for Japanese torpedo attack. Almost all the planning focused on the premise that the initial Japanese attack would fall on the Philippines, which is why MacArthur was ordered to prepare for such an attack.