It's good at telling the events that unfolded, fails to mention an Australian was the first to crack the Japanese code. Then again some Americans, especially Hollywood, think they cracked enigma. The question it raises is if there was a deliberate decision to allow this attack by the politicians and high command. There's no doubt that FDR thought war was necessary but the US people wouldn't support it. At the time of these events he had already started lend - lease shipments to Britain. US naval ships escorted them as far as Iceland with instructions to retaliate against any submarine attack. Then with economic sanctions and oil embargo against Japan, it was simply a matter of time. As for would they allow this massacre for justification, absolutely not. You'd want everything ready to repulse and destroy your attackers, you have a war caused by them attacking you. It was usual incompetence of all the higher up. If you really want to start conspiracy theory, ask where were the carriers, what was their escort and what were they doing anyway.