A pair of academic researchers have uncovered evidence that they say proves the U.S. Census Bureau provided information to U.S. surveillance agencies during World War II used to identify persons of Japanese ancestry. The information helped the government track down Japanese Americans to be sent to internment camps. For 60 years the Census Bureau has denied it passed on the information which was gathered under a promise of confidentiality. The Census Bureau handed over the information in 1943 following a request from the Treasury Department. The data was then shared with the FBI and other government agencies. Earlier this week, the American Civil Liberties Union, the Japanese American Citizens League and the American-Arab Anti-Discrimination Committee urged Congress to investigate the academic report and ensure that such practices do not occur today.