Targetarear:
It is tempting to think the Americans set themselves up to give themselves an excuse to go to war, but I find that difficult to believe. The outrage expressed by the President and by the American people after Pearl Harbor surely gives the lie to that theory. And why should America wish to go to war? It was still recovering from the great depression, and with a vast ocean to its east and west it was invulnerable to attack from either direction.
I think those who believe the conspiracy theories that surround Pearl Harbor are misguided. I too would recommend a viewing of 'Tora, Tora, Tora'. A joint US-Japanese production, it is a thoroughly researched, historically accurate film that lays bare the mistakes made by both sides and leaves one in little doubt that it was incompetence, carelessness and complacency on the part of the defenders and misjudgements on the part of the attackers that allowed the Japanese to destroy the American fleet. Nothing more.
Well, there were the American people and then there was U.S. President Franklin Delano Roosevelt--the American people wanted the U.S.A. to stay out of the European war if possible while Roosevelt strongly desired that the U.S.A. enter it, although he couldn't admit to that publicly--but he told British Prime Minister Winston Churchill that he was looking for a pretext to ask Congress to declare war on Germany. The U.S. Navy was openly attacking German U-boats and providing convoy escorts to British merchant ships partway across the Atlantic Ocean by the summer of 1941, actions that Roosevelt cheerfully denied--he claimed the escorting of British shipping was simply a series of "drills" by American naval vessels.
The Atlantic Charter, signed by Roosevelt and Churchill at sea in August of '41, was essentially a statement of the war aims of the Anglo-American powers, certainly a clear indication that Roosevelt intended to take the U.S.A. into the European war as soon as possible.
Did the American people "set themselves up" to go to war? Of course not, because the American people weren't the commander-in-chief of the U.S. armed forces--that was Roosevelt's individual role as president. The idea that the oceans bordering the U.S.A. kept it safe from foreign attack was a nineteenth-century concept that many Americans still believed in the early twentieth century--but Roosevelt knew otherwise, he was fully aware that if Germany dominated Europe and Japan controlled the Far East they could eventually pose a threat to the U.S.A., economically and at some point militarily as well. BTW, the war production was what finally pulled the American economy all the way into full prosperity again; a major conflict fought on foreign soil is almost always good for a country's business activity.
Were the American people genuinely outraged by the bombing of Pearl Harbor? Obviously, because it was an underhanded attack while Japan was negotiating with the U.S.A., supposedly attempting to peacefully resolve their differences. Roosevelt may have been outraged as well, and at any rate as a master politician he publicly expressed only outrage at the time--but he was certainly gratified when Germany declared war on the U.S.A. three days later and he got what he'd wanted for over a year, American entry into the European war.
I've seen "Tora, Tora, Tora" several times, but it was made in the 1960s (IIRC) and therefore is based on what was known or believed at that time RE the Pearl Harbor attack; furthermore, it's focus is almost entirely on military matters rather than on political machinations within the Japanese and American governments, notably Roosevelt's intention to do whatever was necessary to draw the U.S.A. into a war against Germany--something not necessarily known too well at that time.
AFAIC it was ultimately about confronting Adolf Hitler... --C.K.