I would have to name this as one of the most powerful photos I have ever seen:http://upload.wikimedia.org/wikipedia/en/f/fd/Thich_Quang_Duc_-_Self_Immolation.jpg Abusive comment hidden. (Show it anyway.)
http://upload.wikimedia.org/wikipedia/en/f/fd/Thich_Quang_Duc_-_Self_Immolation.jpg