The United States Government has begun investigating possible identity fraud among Burmese refugees, a move that has frightened the immigrant community. In February, the U.S. Citizenship and Immigration Services, or USCIS, sent letters to more than 1,000 resettled Burmese refugees in the United States. The letters were requests for official interviews. The goal of the investigation into possible identity fraud is unclear. It is exploring a case that goes back almost 10 years. USCIS officials will not say if criminal charges have been or will be filed. And refugee supporters have not reported any such actions. Yet the letters and interviews have kept refugees and their supporters fearful at a time when the U.S. government has increasingly reduced the refugee program.