There is an arm of the Chinese government that has repeatedly aided the nuclear weapons programs of Pakistan and Iran. Now that arm is in line for a $5-billion loan deal from the U.S. government--for the benefit of two major U.S. corporations. The Export-Import Bank of the United States (Ex-Im), an independent federal agency that finances exports, has granted a preliminary commitment for the largest deal in it is history: $5 billion in loans and loan guarantees to the China National Nuclear Corporation (CNNC) to build nuclear power plants. According to U.S. government reports, CNNC has been tied to at...