There is one huge flaw in the Pearl Harbour conspiracy theories, the choice of target.

In 1941 the Battleship was still considered, excepting a few mavericks, by everyone, including the Japanese, as queen of the oceans, invulnerable to anything except another BB or a submarine. As of late 1941 no operational BB had been sunk by air power alone whilst at sea, and although Taranto had shown the way for a Pearl Harbour attack, the shallow water & heavy defenses at Pearl were thought to be more than enough deterrent.

Although the importance of carriers was acknowledged, they were still seen by most as supporting elements, able to track and perhaps damage or slow the enemy, but not capable of inflicting a killer blow. It took the battle of Midway, in June 1942 to finally show the power of the carriers. As of December 1941 BBs were not considered obsolete or expendable, if anything the opposite. Thus there was no way the USN would allow its prime assets to be staked out as sacrificial lambs, even to drag (a supposedly reluctant US population) into war, late as usual It's like Bush lining up all the USAF B2's so that Iran can bomb them, just because some nutters in uniform think that UCAV's are the future - it just wont happen.

The other point is that a successful defence of an empty Pearl by the USAF, followed by the ambush of the retreating Japanese fleet by the absent & still intact BBs would achieve the same aims for the supposed conspirators (US in the war with popular support) as the historical events.