o donnell: we return now to that day that will live in infamy. 80 years ago today, america was divided on whether or not to join a world war, but that was about to change. here again is cbs john dickerson. reporter: just before japanese planes swarmed, president franklin delano roosevelt surveyed his stamp collection. in the paper that day, the navy secretary boasted about the strength of the fleet. america was not at war, and didn t want to be. all of that changed in an instant. japan has done what roosevelt could not do unify a deeply divided nation. reporter: americans who would later become known as the greatest generation endured blackouts, rationing, and workplace changes familiar to those of us restricted in the covid age. the new york times wrote, many workers are feeling essential for the first time. she s making history working for victory, rosy, the riveter