http://news.yahoo.com/blogs/sideshow...164032040.html
Apparently Roosevelt had been informed two days before the attack of such possibility.
From the article:"The memo comes from Craig Shirley's new book,
December 1941: 31 Days that Changed America and Saved the World, which also reports that the Japanese were building a network of spies through their U.S. embassies and consulates. However, Shirley doesn't blame FDR for failing to act on the memo; instead,
he compares the Roosevelt administration's inaction to the executive branch's failure to act on pre-9/11 intelligence."
...interesting comparison, isn't it?