Federal prosecutors have filed four cases seeking to keep more than $358,000 in suspected drug money that Kansas officers recovered in separate traffic stops on Interstate 70. The U.S. Attorney’s office filed the four cases in August and September. The cases involve traffic stops in Ellis, Ellsworth, Shawnee and Wabaunsee counties. Eight cases filed since June total about $884,000 in suspected drug money seized by law enforcement officers on interstate highways in Kansas.