The growing rift between the United States and China has chilling similarities to America’s old rivalry with the Soviet Union, says Daniel W. DreznerWhen Barack Obama burst into the room to disrupt China’s meeting with its fellow climate change sceptics at the Copen-hagen summit, it was clear that something was not right in the relationship between the two countries. The American president had made his way past reporters, with a face like thunder, and shouted at his Chinese counterpart, ‘Mr Premier, are you ready for me?’ Wen Jiabao was not; and according to numerous press reports, Mr Obama was berated by a mid-ranking Chinese official for his rudeness. It was obvious to all present that the relative amicability that had defined Sino-American relations for most of last year was over.