Four men were charged with making illegal exports of carbon fiber from the United States to Iran and China, the U.S. Justice Department announced on Thursday. Carbon fiber has a variety of uses, including in gas centrifuges that enrich uranium and in military aircraft and strategic missiles. The four individuals charged are Hamid Reza Hashemi, a dual U.S. and Iranian citizen who resides in Iran; Peter Gromacki, a U.S. citizen and a resident of Orange County, ...