U.S. Secretary of State Hillary Clinton met with Chinese Vice President Xi Jinping in Washington on Tuesday to discuss the alliance between the two nations and their common efforts in the daily challenges they face. “Cooperation between the United States and China is imperative to address the many vexing challenges we face, from countering proliferation, to addressing climate change, to promoting global economic security,” Hillary Clinton said in her remarks at the State Department. “Developing habits of cooperation is not easy. We have a lot of work to do. But we are both committed to building a lasting framework of trust that will support a cooperative partnership for the next 40 years and beyond,” she said. “It is a great pleasure to welcome Vice President Xi and to celebrate the bonds of friendship between our nation's governments and peoples,” Hillary Clinton concluded.