BB: In 1941, Hitler was no threat to the US at all.

Oh, some would disagree with that assessment (for instance, merchant sailors, etc.).

But a few facts must intrude, dear Bruce:

1). We weren't at war with Hitler in most of 1941 (in fact, the chief opposition to helping England came from the American Bund and their friends in the RW of the Republican party, who were claiming that Hitler wasn't so bad or dangerous, if not going so far as to say we should toss our lot in with Hitler).

2). Germany declared war on the U.S.

HTH.

Cheers,