A Cambodian canal project, built by China, threatens the livelihoods of its downstream neighbors

Southeast Asia relies upon the Mekong River for fish and rice growing. Eleven dams currently block the Mekong before it even leaves China. Now Cambodian officials are pushing ahead with a mega-project, funded by Beijing, that would permanently alter the river’s flow. Their downstream neighbors are worried it will mean less water for them. The World’s Patrick Winn reports from Bangkok.