If you come across a member of the "Greatest Generation" today, be aware of what this date means to them.
Seventy-one years ago, on an otherwise peaceful Sunday, their world — and most likely their lives — changed forever.
They heard the news that Japanese warplanes had attacked Pearl Harbor in Hawaii and America had finally been drawn into World War II. That day and the next four years rocked their world to its foundations and they survived.
Nod, say hello, and offer a smile. It's the least we can do.