Quiz: Mekong River Did you know the Mekong River is the longest river in Southeast Asia and supports the lives of 70 million people from Tibet to Vietnam? What more do you know about this river? 2010.02.17 Related links: Traveling down the Mekong River MORE Multimedia Drinking Water Runs Dry Part 5: How Black is the Dragon? Part 4: A Stream Becomes a Sewer Part 2: Scorched Rare Earth Map of Dams in Laos MOST READ RFA Chinese arrests jump nearly 50% amid clampdown on ‘hostile foreign forces’ China pushes ‘Sinicization of Islam’ in Xinjiang as Ramadan arrives Videos appear to show Myanmar military training Rohingyas North Koreans try to avoid forced construction work Military conscription poised to start in Myanmar’s Yangon