perspective of the leadup to the invasion and then how the fighting unfolded in real time. >> historian garrett graph is here, is the author of the remarkable new book, when the sea came alive and oral history of the day garrett, thanks so much for being here, congrats on the book before we talk about the book, though, i do want to note there are very few veterans who fought on d-day who are still with us. and you recently wrote about why it's so important to keep their memories alive. he wrote, quote, we now face the very real question of whether america will embrace a vision of a country less free and less democratic, more divided and more unequal it would be a step backward, unlike almost anything else. in american history, unquote you've spoken to so many of these veterans. what do they make of the moment we're in with democratic backsliding all over the world, including in the united states.