Khone Falls, the largest waterfall on the Mekong River, is now being threatened by a hydroelectric dam building. If the dam goes ahead it will have a major impact on the Irrawaddy dolphins and another endangered species, the giant catfish. Building the dam would block the massive fish migrations that help feed millions of people within the region. The stakes are huge. This is one dam that must never be built. It was produced for Towards Ecological Recovery and Regional Alliance (TERRA) in 2008.