Should the US have entered WW2 Earlier?

[angus]

Yes(IO).  There is evidence that Roosevelt was aware of the atrocities from the second Sino-Japanese war as early as January 3, 1938.  We had many non-interventionists at the time, and likely I'd have been among them, given my own sensibilities, so I don't fault the government, but I think that in the grand scheme of things US intervention early in China would have prevented very much geopolitical grief that still haunts us today.