The US military is very dependent on satellites. The existing satellite architecture used has single point failures to existing recognized threats. A concept that could provide a significant part of the solution of how the US as well as other states can overcome such vulnerabilities is discussed. The prescription centers on a new satellite architecture --the 'Multi-tiered Microsatellite Constellation Architecture' (MMCA) -- which reduces risks to space assets by increasing system redundancy, modularity and dispersion through the use of microsatellite constellations in several orbital tiers. An example constellation design is given for each of the five major contemporary military space uses -- early warning, reconnaissance, signals intelligence, military communications and navigation. The scheme is placed in the context of other complimentary elements that are likely to be necessary to enable security of space assets, in particular: protection of space systems; responsive space access; terrestrial alternatives; space surveillance; treaties; and verification means thereof. Since the Chinese anti-satellite (ASAT) test, the response of the US military in part has been to re-double efforts to develop Operationally Responsive Space (ORS). Whilst ORS is a key ingredient, it must be complemented by a more secure satellite architecture. In addition to dealing with satellite vulnerabilities, the talk will discuss issues relating to space-based weapons and their effectiveness.

William Marshall is based in the Small Spacecraft Office at NASA's Ames Research Center in California. He holds a PhD in Physics from the University of Oxford, U.K., where his thesis centred on an experimental proposal to create macroscopic mass quantum superposition states. He conducted two years of his research at the University of California in Santa Barbara. He holds a degree in Physics with Space Science and Technology (MPhys) from the University of Leicester, UK. He has held placements at the European Space Agency, NASA's Jet Propulsion Laboratory, Marshall Space Flight Center and the Parliamentary Office of Science and Technology (POST) in London. Will's work at NASA centers on mission planning, in particular trajectory analysis, and spacecraft testing for a variety of microsatellite missions, focusing on lunar orbiters and landers. He is working on a project on the topic of space traffic management. Will serves on the Governance Group of the Space Security Index research project and also holds positions of non-resident fellow at both the Space Policy Institute (SPI) of the George Washington University and the Belfer Centre for Science and International Affairs, Kennedy School of Government, Harvard University. In these capacities, Will has published on strategic benefits and costs of the deployment of space weapons and more broadly the increasingly important role that space is playing in global security issues. Will is the Global co-Chair of the Space Generation Advisory Council to the United Nations Programme on Space Applications (SGAC), which represents the views of students and young professionals interested in space to the UN and space agencies around the world.

This summer the DOE Energy Information Agency released its study of the McCain/Lieberman Climate Stewardship bill, concluding that the largest single effect of these carbon controls would be the construction of 145 gigawatts of new U.S. nuclear capacity by 2030, more than doubling the existing 100 gigawatts. From the perspective of the early 1990's, today's resurgent interest in nuclear energy may appear surprising. This seminar will review what changed over the last 20 years that returned nuclear energy to broad public attention today, and will discuss the range of possible nuclear energy futures and their implications for security and the environment.

Per F. Peterson is Professor and previous chair of the Department of Nuclear Engineering at the University of California, Berkeley. He received his BS in Mechanical Engineering at the University of Nevada, Reno, in 1982. After working at Bechtel on high-level radioactive waste processing from 1982 to 1985, he received a MS degree in Mechanical Engineering at the University of California, Berkeley in 1986 and a PhD in 1988. He was a JSPS Fellow at the Tokyo Institute of Technology from 1989 to 1990 and a National Science Foundation Presidential Young Investigator from 1990 to 1995. He is past chairman of the Thermal Hydraulics Division (1996-1997) and a Fellow (2002) of the American Nuclear Society, a recipient of the Fusion Power Associates Excellence in Fusion Engineering Award (1999), and has served as editor for three journals.

Professor Peterson's work focuses on applications in energy and environmental systems, including passive reactor safety systems, inertial fusion energy, and nuclear materials management and security. His research interests focus on thermal hydraulics, heat and mass transfer, nonproliferation and nuclear security. He is author of over 100 archival journal articles and over 130 conference publications on these topics.

David Montague, an independent consultant, is retired President of the Missile Systems Division at Lockheed Martin Missiles and Space. A member of the NAE, his background is in military weapon systems, particularly in regard to guidance and control of submarine-launched weaponry. His experience has focused on both tactical and strategic strike systems, as well as on the requirements for, development of, and policy issues related to defense systems to protect against weapons of mass destruction. His recent research interests include the area of electric vehicles powered by battery or fuel cells integrated with induction drive high-speed highway automatic headway and vehicle control. Mr. Montague is a fellow of the American Institute of Aeronautics and Astronautics, and has served on numerous scientific boards and advisory committees, to include task forces for both the U.S. Army and Defense Science Board. He currently serves as a member of the Naval Studies Board.

Rhodri Jeffreys-Jones is the well-known scholar of U.S. intelligence agencies and the author of numerous books, among them The CIA and American Democracy; Cloak and Dollar: A History of American Secret Intelligence; Changing Differences: Women and the Shaping of American Foreign Policy; and Peace Now! American Society and the Ending of the Vietnam War. His most recent book, The FBI: A History (Yale University Press, September 2007), examines the bureau's history from a European perspective and in the context of American history, including the prism of race.

Jeffreys-Jones, a professor of American History at the University of Edinburgh, received his BA from the University College of Wales, Aberystwyth, and his PhD from the University of Cambridge. Other appointments have included a fellowship at the Charles Warren Center for the Study of American History, Harvard University; stipendiary, JFK Institut für Nordamerikastudien, Berlin; and Canadian Commonwealth Fellow and Visiting Professor, University of Toronto.

Maite Zubiaurre is Assistant Professor in the Department of Spanish and Portuguese at the University of California, Los Angeles. She has a Ph.D. in Comparative Literature from Columbia University, and has taught Spanish literature at a variety of distinguished institutions including Columbia University, the University of Texas, Austin, the Universidad Nacional Autónoma de México, and the University of Southern California, among others. Dr. Zubiaurre's research interests include twentieth-century Peninsular literature; European and Latin American Realism; comparative literature; gender studies; urban studies; cultural studies; Latin American women's fiction; and Latina and Chicana fiction.