Photos that define tragedy
The recent popular uprising in Myanmar, photos, is just the latest example of how photos and videos are what really raises awareness about tragic situations worldwide. The BBC have several photos in their picture power collection (some graphic images which people may find disturbing) Oklahoma baby, napalm attack in Vietnam, Misery in Darfur, Death of an Iraqi soldier, Death of a Viet Cong guerilla and Afghan Girl.
Media has brought us all more information and power with that, I hope it brings wider awareness and is not used to spin out a story.