simply unthinkable! norah: plus, we hear from the greatest generation. what were you fighting for? freedom. norah: the cbs evening news starts now. 80 years later, the world remembers the soldiers, sailors, and airmen of the allied expeditionary force. good evening. i m norah o donnell, and thank you being with us. the sun rose over normandy s cliffs this morning, just as it did on june 6, 1944, as the liberation of western europe began with the largest amphibious invasion in history. president biden joined other world leaders to honor the bravery and sacrifice of the d-day heroes. he drew a straight line from the fight for freedom in world war ii to the fight against russia s aggression now, saying, freedom is worth it. democracy is worth it. the world is worth it. cbs mornings anchor tony dokoupil is at the american cemetery in normandy. good evening, tony. reporter: good evening, norah. you know, with all world war ii veterans now in their upper 90s or