I'm amazed that this is even in question, but, people are SO emotionally invested in the propaganda, and the thought that the us Government could never do wrong, and the Japanese attacked us out of the blue, for NO reason at all....

FDR (and Churchill) did everything they could to go to war. FDR did his best to goad Germany into doing something so he would have his pretense for war... but the Germans weren't going for the bait. The Japanese, on the other hand, were found to be more easily agitated to retaliate against the us Governments acts of war.