2012 Nuclear Security Summit The 2012 Nuclear Security Summit ( 2012 서울 핵안보정상회의 : 2012 Seoul Nuclear Security Summit ) was a summit held at the COEX Convention & Exhibition Center in Seoul , South Korea , on March 26 and 27 , 2012 . It was the second edition of the conference after the 2010 Nuclear Security Summit . The importance of planning for the conference was clarified when American President Barack Obama explained his view that " we have the opportunity , as partners , to ensure that our progress is not a fleeting moment , but part of a serious and sustained effort . The " 2012 Seoul Nuclear Security Summit " , is the largest summit in the security field that discusses international cooperative measures to protect nuclear materials and facilities from terrorist groups , with participation from more than 53 heads of state and international organizations . The main issues to be discussed at the Summit were as follows : Fifty - eight world leaders from 53 states and four international organizations , including the United Nations , International Atomic Energy Agency , the European Union and INTERPOL , have participated in the Summit . At the summit , the leaders discussed about the nuclear terrorism threats and nuclear security preparedness . They also reviewed the implementation of agreements and voluntary commitments . Then the leaders focused on major nuclear security issues , mostly brought up at the Washington summit , such as the minimization and management of highly enriched uranium , ratification of nuclear security conventions , strengthening information and transportation security , IAEA ’ s role , preventing illicit nuclear trafficking , nuclear security culture , and international cooperation and assistance . In the aftermath of the Fukushima nuclear power plant accident in March 2011 , Korea took the initiative of adding two new issues of radiological security and nuclear security - safety interface to the agenda . The Washington summit had focused on nuclear terrorism with explosive nuclear devices , perceiving that as the biggest threat to international security . The 2012 Seoul summit discussed protection against dirty bombs or the sabotage of nuclear facilities . The Seoul summit also discussed the integration of nuclear security and safety . Some states initially opposed these two items , claiming that they would “ dilute ” the focus of the summit . To the contrary : Their inclusion helps make more countries willing participants in the summit since radiological terrorism or nuclear safety are more palpable threats than nuclear bomb terrorism . Background . The first Nuclear Security Summit was held in Washington D . C . on April 12 and 13 , 2010 . U . S . President Obama , who proposed the Nuclear Security Summit in his April 2009 Prague speech , invited 47 heads of states and three representatives of international organizations . In the Prague speech , President Obama announced his vision for a ‘ world without nuclear weapons ’ and proposed nuclear security as one of three strategic goals for this vision together with nuclear disarmament and nonproliferation . President Obama also announced a nuclear security goal to secure all vulnerable nuclear materials around the world in four years . During the Washington summit , Korea was designated as the second summit host by Present Obama and this proposal was greeted by all participants . This decision reflects the recognition of Korea ’ s increasing global presence by international society . The selection of Korea as host of the 2012 Summit reflects the international community ' s recognition of its world - class nuclear technology , its compliance with NPT obligations and its exemplary use of nuclear energy for peaceful purposes . The hosting of the Nuclear Security Summit on the Korean peninsula will be highly significant given its implications within the context of denuclearization . Schedule and agenda . The host country of the summit plays an important role in setting the agenda . The North Korean nuclear issue is expected to top the agenda of the 2012 summit ; and the summit may attempt to deal with a broader spectrum of non - proliferation issues than in Washington . In advance of the meeting date , negotiations will take place primarily amongst multi - national civil servants . It is open to question that for Germany , the table lists the leader of their delegation to be their President , but not the normally more authoritative office of ; one can interpret this as the nation - state Germany contracting out its global security concerns and responsibilities to the European Union , an improvised aggregate state with features of a continuing experimental nature . In terms of other listed national leaders , the same matter concerning the de facto versus de jure authority is most relevant for Russia , a Permanent Member of the UN Security Council and the second Nuclear Weapon State . As Brazil and Vietnam are planning to increase their nuclear power plants significantly , questions can also be raised as to who is included in their delegations to the summit . Although Brazil is on a good overall economic trajectory , its culture has a history of coups , and securing enriched nuclear fuel and enrichment equipment practical knowledge can be a difficult task . It is open to question whether or not any Brazilian legislative leaders , not of Her Excellency President Rousseff ' s political party , will be at the Summit . The Summit officially began with a Welcome Reception and a Working Dinner on the night of the 26th , and on the 27th there was a Morning Session , a Working Luncheon and an Afternoon Session . The agenda for each session was as follows : 1 . March 26 ( Monday ) - Working Dinner : Review of the Progress Made Since the 2010 Washington Summit 2 . March 27 ( Tuesday ) - Plenary Session I : National Measures and International Cooperation to Enhance Nuclear Security , including Future Commitments - Working Lunch : Nuclear Security - Safety Interface - Plenary Session II : National Measures and International Cooperation to Enhance Nuclear Security , including Future Commitments ( cont . ) . Seoul Communiqué . The Seoul Communiqué builds on the objectives and measures set out in the 2010 Washington Communiqué to identify 11 areas of priority and importance in nuclear security and presents specific actions in each area . The 11 areas are as follows : the global nuclear security architecture ; the role of the IAEA ; nuclear materials ; radioactive sources ; nuclear security and safety ; transportation security ; combating illicit trafficking ; nuclear forensics ; nuclear security culture ; information security ; and international cooperation . The Seoul Communiqué sets out the following specific actions in the above 11 areas : There are a number of points particularly worthy of note in the Seoul Communiqué . Firstly , it provides important timelines for advancing nuclear security objectives , such as the target year ( end of 2013 ) for states to announce voluntary actions on minimizing the use of HEU and the goal year ( 2014 ) for bringing the amended CPPNM into effect . Secondly , it reflects the need to address both the issues of nuclear security and nuclear safety in a coherent manner for the sustainable peaceful uses of nuclear energy . It also emphasizes the need to better secure spent nuclear fuel and radioactive waste . Thirdly , it sets out specific measures to prevent radiological terrorism , an issue which was only briefly touched upon at the Washington Summit .