https://www.ted.com/talks/james_nachtwey_my_wish_let_my_photographs_bear_witness?language=en
War photographer James Nachtwey did an award winning TED talk that is superb. He well illustrated his talk with his photos. Note: his photography is strong, maybe not suitable for squeamish.
Also the movie "War Photographer" by Christian Frie was nominated for an Academy Award. It is not by Nachtwey but about him. Some of the footage was shot from a helmet cam Frie fit on Nachtwey's hat. It tells a great story about him, and shows his work. If you think war photography is adrenaline junkies, this will change your perception.
His bio and the order in which he lists his honors tells about him:
He has received numerous honors such as the Common Wealth Award, Martin Luther King Award, Dr. Jean Mayer Global Citizenship Award, Henry Luce Award, Robert Capa Gold Medal (five times), the World Press Photo Award (twice), Magazine Photographer of the Year (seven times), the International Center of Photography Infinity Award (three times), the Leica Award (twice), the Bayeaux Award for War Correspondents (twice), the Alfred Eisenstaedt Award, the Canon Photo Essayist Award, and the W. Eugene Smith Memorial Grant in Humanistic Photography. He is a fellow of the Royal Photographic Society and has an honorary doctorate of fine arts from the Massachusetts College of Arts.