Iowa Senator Chuck Grassley is calling for a federal investigation of the U-S Army Corps of Engineers. Reports say there is significant evidence the Corps broke the law, wasted millions of dollars & doctored the numbers in a study showing the need to broaden the Upper Mississippi River’s lock & dam system. The study on proposed work on the Upper Mississippi and Illinois rivers cost the taxpayers 58-million dollars. Grassley says he’s not sure the Department of Defense would do a good job investigating the case. He wants the General Accounting Office, or G-A-O, to look into the allegations against the Corps of Engineers.The Corps of Engineers has denied all allegations of wrongdoing and manipulation, charges brought by a federal investigator. That investigator says there is a great deal of evidence the Corps tried to bury independent reports that didn’t support more construction of locks and dams.