Fourth, we should place equal emphasis on treating symptoms and addressing causes, and advance the nuclear security endeavor in all respects with the goal of removing the associated risks at the root. The issue of nuclear security has many dimensions, from exercising sound and effective management to developing advanced and secure nuclear energy technologies and to dealing with nuclear terrorism and nuclear proliferation. To eliminate the potential risks of nuclear security and nuclear proliferation in a direct and effective way, we must improve relevant policies and measures, develop modern, low-risk nuclear energy technologies, maintain balanced supply and demand of nuclear materials, strengthen non-proliferation efforts and export control, and deepen international cooperation against nuclear terrorism.