epa01684978 Currencies from various countries are arranged for photographs in Shanghai, China on 02 April, 2009. China has called for revolutionary change in the world financial system by suggesting that the U.S. dollar be replaced as the world's reserve currency. China is currently the biggest holder of American debt and has become increasingly worried about the stability of the U.S. dollar as America will certainly continue to extend its borrowing binge in order to finance its economic stimulus programs. EPA/QILAI SHEN