evidence: Efforts to reach the Laos Embassy in Phnom Penh for comment were not successful. [...] Under the 1995 Mekong agreement, a government seeking to build a dam on the Mekong must seek prior consultation and agreement with other members. [...] Nao Thuok, director of the Ministry of Agriculture’s Fisheries Department, said one of the dams, in Stung Treng province, could lead to a 20 percent drop in fish stocks.