The International Institute for Applied Systems Analysis (IIASA) in Laxenburg, Austria, was founded during the period of détente in 1972 to bring scientists from East and West together to research shared problems and thus to build a “bridge” between the two opposed systems. The underlying image of knowledge at the institute was in stark contrast to the intellectual culture established in East Germany. Contributing to our understanding of the history of Cold War knowledge transfer, this essay reconstructs East Germany’s ambivalent (...) and complex role at IIASA. Even if participation was considered important for displaying East German science, the essay argues that East Germany’s contribution was caught up in the perception of the Western scholar as a class enemy. It illustrates this by examining the best-documented case: that of Harry Maier, a social scientist who spent two years at IIASA between 1978 and 1980 and then, in 1986, used a conference visit to escape from East Germany. (shrink)