Denyav twisted the electrons to say:
2)If you read history you must also know that that FDR promised the
nation not enter war unless attacked (a requirement of domestic
politics)

A solution to satisfy two contradictionary requirements =
The Pearl Harbor trap

So, if we where to accept your premise that the White House knew not only
that the Japanese where coming but also the day they would be "arriving",
why not warn Pearl Harbour? After all, if you're planning on joining a
war it's generally considered an advantage not to lose large amounts of
men and equipment on day 1!

No need to sortie the fleet if you still want a "sneak attack", just get
them placed on alert - ie: all anti-aircraft guns manned and ready and a
decent CAP (with the rest of the fighters on +5/+15) overhead.
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These opinions might not even be mine ...
Let alone connected with my employer ...