An environmentalist group has filed a lawsuit urging the government to oppose the construction of yet another dam on the Mekong in Lao PDR, saying local participation must be more than window dressing.    On 8 June 2017, an environmental conservation group called Khon Rak Chiang Kong filed a lawsuit at the Administrative Court against the Thai National Mekong Committee Secretariat, the Department of Water Resources (DWR) and the Department’s Director-General.    The group asked the court to order both organisations to oppose