I am a historian of the United States and the world.  My research and teaching interests lie in the forces shaping U.S. foreign relations, especially the interaction of national and transnational factors and domestic and foreign influences, in twentieth century international history.

I recently led a project on the history, politics, and culture of national security whistleblowing, which included co-editing Whistleblowing Nation: The History of National Security Disclosures and the Cult of Secrecy (Columbia University Press, 2020).  My first book was The United States, Italy, and the Origins of Cold War: Waging Political Warfare (Cambridge University Press, 2014) and I guest edited a special issue on U.S. foreign relations, intelligence, and international history for Intelligence and National Security (2011).  My articles have appeared in journals including Diplomatic History, Cold War History, Modern Italy, and Journal of American History.  In addition to my scholarly work, my writing has appeared in Foreign Policy in Focus, Process, The Conversation, and Washington Post.

Current research includes projects on the culture of secrecy, anti-imperial whistleblowing, and the regulation of speech rights.

I am happy to supervise research students working on the U.S. and the world; the international and transnational cold war; U.S. foreign relations history; protest and dissent; intelligence and cultures of secrecy; and modern Italy.

I joined UEA after positions at the University of Warwick and University College Dublin.  I completed my Ph.D. at the University of Birmingham and studied at the University of California, Los Angeles and University of Padua.  I have held visiting positions at University of Bologna, University of Oxford, and New York University.

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