Was Pearl Harbor really a surprise?
or
Did FDR really know about the coming attack and deliberately kept it a secret and sacrificed Pearl Harbor to get the US to enter WWII?
Issues
The US sent an unfair ultimatum to Japan. Japan's response to the ultimatum is mired in mystery.
Japan never had ambitions to invade the US:
http://en.wikipedia.org/wiki/Attack_on_Pearl_Harbor
http://whatreallyhappened.com/pearl/www.geocities.com/Pentagon/6315/pearl.html
or
Did FDR really know about the coming attack and deliberately kept it a secret and sacrificed Pearl Harbor to get the US to enter WWII?
Issues
The US sent an unfair ultimatum to Japan. Japan's response to the ultimatum is mired in mystery.
Japan never had ambitions to invade the US:
The intent of the strike was to protect Imperial Japan's advance into Malaya and the Dutch East Indies – for their natural resources such as oil and rubber – by neutralizing the U.S. Pacific Fleet.
http://en.wikipedia.org/wiki/Attack_on_Pearl_Harbor
http://whatreallyhappened.com/pearl/www.geocities.com/Pentagon/6315/pearl.html