The great silence that is the legacy of genocide -- Neil Trevithick considers the legacy of brutality in Cambodia; Andrew Harding manages to relax on the beach in war-weary Mogadishu and finds some Somalians optimistic about the future; Paul Adams eats oysters for breakfast and talks to some of those living with the aftermath of the Gulf of Mexico's oil spill disaster. With much of the opposition boycotting the second round of general election voting, Jon Leyne considers the nature of politics Egyptian-style and Pascale Harter's learning how to endure endless thirst in one of the hottest places on the planet.