The Seoul Nuclear Security Summit ended yesterday with the announcement of communique promising to minimize the use of highly-enriched uranium by the end of 2013. But experts doubted about whether it had any real hope of implementation. South Korean President Lee Myung-bak, who chaired the summit, announcing the communique, said participating countries have agreed to "voluntarily announce their specific actions on minimizing the use of highly-enriched uranium by the end of 2013." Kim Ik-jung, head of the executive committee of the Korean Professors’Organization for a Post-Nuclear Energy Society, said the agreement to reduce nuclear materials was "positive." But Lee Heon-seok, professor of medicine at Dongguk University, questioned if it could be realized because "the agreement is not compulsory but just declaratory." Lee, a representative of environmental NGO Energy Justice Action, said: "this summit has not mentioned any danger of nuclear power generation" which he said was as dangerous as nuclear weapons. The Seoul meeting was the second round of talks forming the Nuclear Security Summit. The next meeting will be in the Netherlands in 2014. Related report: Nuclear summit opens amid protests