We think of the FBI as America's police force. But secret intelligence is the Bureau's first and foremost mission. The FBI's secret intelligence and surveillance techniques have created a tug-of-war between national security and civil liberties, a tension that strains the very fabric of a free republic. Enemies is the story of how presidents have used the FBI to conduct political warfare--and how it has sometimes been turned against them. And it is the story of how the Bureau became the most powerful intelligence service the United States possesses.

Named One of the Best Books of the Year by The Washington Post, New York Daily News, and Slate

"Pulitzer Prize-winning author Tim Weiner has written a riveting inside account of the FBI's secret machinations that goes so deep into the Bureau's skulduggery, readers will feel they are tapping the phones along with J. Edgar Hoover. This is a book that every American who cares about civil liberties should read."--Jane Mayer, author of Dark Money

"Outstanding."--The New York Times

"Absorbing . . . a sweeping narrative that is all the more entertaining because it is so redolent with screw-ups and scandals."--Los Angeles Times

"Fascinating."--The Wall Street Journal

"Important and disturbing . . . with all the verve and coherence of a good spy thriller."--The New York Times Book Review

"Exciting and fast-paced."--The Daily Beast