I am an historian working at the intersection between the history of science and technology and the foreign policy of governments. I concentrate on knowledge that is 'dual-use', i.e. civil and military, above all in the nuclear and space sectors. My time period is the Cold war. In the initial stages of my career I wrote about the place of this knowledge in relationships between major European powers. For the last decade my focus has shifted to U.S. - European relationships. I am interested in how the United States uses its scientific and technological pre-eminence in these sensitive domains as an instrument of soft power, and as a tool to shape the research agendas of its allies. Recently I have expanded my horizons to include transnational history, with a focus on the factors that regulate and that facilitate the flow of knowledge across national borders (typically, export controls)
