FILE - In this Feb. 2014, file photo, philanthropist Howard G. Buffett, son of investor Warren Buffett, participates in a panel discussion at the conference on cover crops and soil health, in Omaha, Neb. Buffett's Foundation has contributed $55.1 million to Decatur, Ill., and its surrounding Macon County with dozens of grants. Buffet says while he plans to eventually return to his hometown of Omaha, Nebraska, his foundation will stay and continue to assist Decatur. (AP Photo/Nati Harnik, File)