Here is an interesting video of an interview with Mathew Lewis Jr, who won a Pulitzer Prize in 1975 for his documentation of the civil rights movement. Some very nice photos as well.
http://www.youtube.com/watch?v=LsR8QAyMTvk&feature=player_embedded
http://www.youtube.com/watch?v=LsR8QAyMTvk&feature=player_embedded