James Nachtwey talks about the power of documentary photojournalism, shows his work and discusses the world events he has photographed in a superb-quality 24-minute QuickTime video of his acceptance speech for the 2007 TED Prize.

 

For those on slower Internet connections, the TEDBlog site hosts a lower-resolution version of the speech. But the clarity of the video - and Nachtwey's still pictures within - make the higher-resolution version worth the download time.