According to a report prepared by the inspectors general of the Pentagon, the State Department, and the now effectively dismantled US Agency for International Development, 13 other investigations have been closed WASHINGTON, May 19. /TASS/. US authorities are investigating at least 56 possible cases of fraud and corruption linked to financial assistance provided to Kiev, as well as the transfer of weapons supplied to Ukraine to third parties, according to a new report prepared by the inspectors