SHARON WEINBERGER is Executive Editor at Foreign Policy and the author of Imaginary Weapons: A Journey Through the Pentagon's Scientific Underworld. She is currently a fellow at the Radcliffe Institute for Advanced Study at Harvard University and a Global Fellow at the Woodrow Wilson International Center for Scholars. She has also held fellowships at MIT's Knight Science Journalism program, the International Reporting Program at Johns Hopkins Paul H. Nitze School of Advanced International Studies, and Northwestern University's Medill School of Journalism. She has written on military science and technology for Nature, BBC, Discover, Slate, Wired, and The Washington Post, among others.