James Nachtwey is perhaps the greatest war photographer alive. Adapting Raleigh’s famous judgment on Henry VIII, one might even say that “if all the patterns and pictures of war photographers were lost to the world, they might be painted to the life from James Nachtway.”
He has covered conflicts and major social issues in more than 30 countries. Here, he talks about all the conflicts and tragedies he covered in last four decades.
Iconic Photos 
And here is the result of the TED prize funding: http://xdrtb.org/photographs.php