ADDIEVILLE, Ill.( Reuters) - Clouds crowded the Illinois sky as Nick Harre walked away from his combine at the peak of harvest to join four fellow farmers in greeting some unlikely visitors. A sign greets members of Illinois Soybean Growers Association and a trade group of grain buyers from Sri Lanka at the Pioneer-DuPont Seed facility in Addieville, Illinois U.S., September 19, 2018. Picture taken September 19, 2018.