As Americans and other countries involved commemorate the 81st anniversary of D-Day, Martha takes a look back at her conversation with historian and journalist Garrett Graff about the unsung heroes of the day. He highlights his book, 'When the Sea Came Alive: An Oral History of D-Day, ' which honors D-Day with stories of military and human triumphs. 

Garret shares with Martha some of the powerful interviews he conducted, remembering those who demonstrated courage and bravery on June 6th, 1944.

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