Edited by Loch Johnson, one of the world's leading authorities on the subject, this state-of-the-art Handbook examines the topic of intelligence and national security in full. Beginning with an examination of the major theories of intelligence, it then shifts its focus to how intelligence agencies operate, how they collect information from around the world, the problems that come with transforming "raw" information into credible analysis, and the difficulties in disseminating intelligence to policymakers. Throughout, contributors factor in broader historical and political contexts that are integral to understanding how intelligence agencies function in our information-dominated age.About the Author: Loch K. Johnson is Regents Professor and Josiah Meigs Distinguished Teaching Professor at the University of Georgia. He is the author of America's Secret Power: The CIA in a Democratic Society (OUP 1991 ) and co-editor of Intelligence and National Security: The Secret World of Spies (OUP 2007).