"No Germany had not yet attacked the USA in any significant manner (there were a couple of U-boat incidents, but that happens in war all too easily and often by accident)"

A bit more than that, even to the point some believe that FDR was trying to provoke Germany into attacking the US and, disappointed at the public's reaction to the attacks, re-focused on Japan.

As I understand it, FDR had ordered US destroyers to accompany British convoys in a fairly stark violation of the Neutrality Act. According to some historians, when Germany was able to avoid attacking US vessels, FDR ordered the US destroyers to interpose themselves between the British warships on the convoys and their German attackers. Two destoyers were attacked, but the US public was so anti-war at the time, it was ignored. US seaplanes with US crews also participated in the search for the Bismark.

Somewhere around here I have a translated diplomatic message from Tokyo to their Embassy in DC describing the pressure they were under to protest the attacks that the US was making on Germany.

I'm not siding with tar_heel here (Germany did try to avoid bringing the US into the war until it was ready), but FDR was hell bent on getting into the war so he could save the British. He knew that the US anti-war sentiment was such that he could not deliver the first blow, so he had to provoke them into attacking us. Japan was just easier to provoke than Germany. Here's the plan for doing just that dated October 7, 1940. It explains why US military analysts did not expect to be able to provoke Germany and why there was value in provoking Japan instead. Almost all of the action items in Section 9 were implemented. (Sorry, I'd normally use a more neutral source, but this was the one I could find quickly and it's the same as the hardcopy I have.) The McCollum Memo