It never ceases to amaze me that people know as little as they do about their nation's past, even when Hollywood mostly propagates myths.
"Tora" does not mean "kill" in Japanese. It means "Tiger" (Prange, Gordon W.,"At Dawn We Slept", New York: Putnam, 1981.)
This movie was one of the better dramatizations of the Pearl Harbor debacle, focusing more on the miscommunications and errors in judgment shown by the military leadership in Hawaii. Also covered is the pure luck the Japanese First Air Fleet had. Left out, mostly because it had not yet become publicly available, was the information that the White House, the State Department, and the upper echelons of the military kept from Admiral Kimmel and Lieutenant General Short. Both of these men were made scapegoats for failing to protect their commands from attack, while being deprived of the information they really needed to do so. (Stinnett, Robert B. "Day of Deceit", New York: Simon & Schuster, 2000.)
Still, this is a vastly better movie than the recent farce made by Michael Bay. It was no more an accurate portrayal of Pearl Harbor than Ghostbusters was factual.
