CR: It has been argue that nuclear weapons are not the threat in the world because it can protect their countries. Clark, G. (1995) contends that in the three decades of nuclear weapons development between two devastating world wars, but no world war is about nuclear weapons. For example Express Report.(2010) argue that Possession of nuclear weapons is peaceful and has sexual deterrent, although India's development of nuclear weapons in this period have many countries impose sanctions, but today nuclear weapons in India has a very good management and development, not only as environment-friendly society , recycling the fuel, but also play a role in sexual deterrent.
Rf: Nuclear weapons, In fact, Nuclear weapons totally fail to achieve its protection function of world’s peace and can not play a role in sexual deterrent. Research undertaken by the Staff of the Nuclear Age Peace Foundation (1999) indicated that many countries possesss nuclear weapons in a war because they want to plunder more resources and occupy more places, possession of nuclear weapons only for big countries such as the United States and the United Kingdom strongly（删掉） that some small country possession of nuclear weapons danger than they haven’t nuclear weapons. In fact many countries have been suffering in proxy war like Somalia, Afghanistan, Indochina, they not only need to conventional weapons to protect themselves and also needs to have nuclear weapons to stop the United States from time to time harassment.
Arg: However, although having nuclear weapons in their countries can protect them is truth but western countries have nuclear weapons but could not maintain world peace instead of threatening of world peace. For instance, the United States and its allies said that Iran has nuclear weapons will attack threats to world peace, but Iran signed the Nuclear Non-Proliferation Treaty and ensure that weapons are not available to other countries and has a clear purpose in that, but the United States has signed the Nuclear Non-Proliferation Treaty too. （所以，你这段是想表达什么？）Moreover it has provided nuclear technology to Israel, who making Israel's possession of nuclear weapons is the only race in the Middle East countries. It is shows that the United States and his allies have nuclear weapons threaten world peace. (By Finian Cunningham,Global Research 2010).
Issue 2 Security
CR: It has been argued that possession of nuclear weapons is considered low-risk and low-cost in comparison to building several nuclear bombs. For example, North Korea have manufactured