This report of the investigation into East European newspaper treatment of the accident at Pennsylvania's Three Mile Island nuclear power plant in the spring of 1979 focuses on the Czech and Slovak media, particularly on the Slovak Communist Party's daily newspaper, "Pravda." The response of the media of other East European countries to energy questions is also summarized. Attention is given to political, cultural, and historical patterns and traditions, and a note on dissident treatment of the nuclear power issue is included. The following observations emerged from the study: (1) there were significant distinctions among the reports of different media; (2) sources for gathering news were often only the governmental press agencies; (3) the social, political, and economic contexts of a news story were often decisive factors in how the story was written; and (4) with the possible exception of Yugoslavia, the media of Eastern Europe seemed to lack diversity. (AEA)