Nuclear Power - Do you think a serious nuclear power plant accident like the one in the Soviet Union is likely or not likely to occur in the U.S. in the next 10 years?, 1977-12-14, Box: 166. Des Moines Register Iowa Poll, MsC1050. University of Iowa Special Collections. https://aspace.lib.uiowa.edu/repositories/2/archival_objects/1091944 Accessed August 10, 2026.