nachtwey is one of the greatest war photographers of all time.armed conflict in the world. he was shot in the leg in thailand, wounded by a bomb in el salvador, a mortar in beirut, and a grenade in iraq that was tossed into a humvee he was riding in. james nachtwey is 75 now, and as we first reported in may, still risking his life to capture images that may be difficult to look at, but important to never forget. >> in the darkest times and in the most dangerous places, james nachtwey captures beauty and brutality. moments of hate and heroism, senseless destruruction, and qut acts of compassion. his photographs reveal the deepest and often disturbing depths of who we are and what we do to each other. >> you've said that photographs can speak, and i'm wondering if you feel like you're -- you're helping give voice to some of the people you photograph. >> well, many of the people i photographed are marginalized by the powers that be, that they're silenced, they're made invisible. so when someone comes from another part of the world and he assumes ris