anyone ever been to the USS Arizona Memorial? Its an eerie place. you can see oil in the water still. You can hear noises from below. its very sad, but you still feel an aura of pride.
If you think about it, if that day doesnt happen, it probably would have delayed our entry into World War II, thus dramatically altering the events that followed. Germany could have fortified Western Europe, and maybe even defeated the Soviets, who knows.