THE BURGLARY The Discovery of J Edgar Hoover's Secret FBI Betty Medsger Alfred A Knopf; 596 pages; $29.95 On a March evening in 1971, eight antiwar protesters burglarised a Federal Bureau of Investigation (FBI) office in Media, Pennsylvania, just outside Philadelphia, with astonishing ease. A few weeks of elementary surveillance had shown them the vulnerability of the target: there were no cameras to elude, no alarms to disconnect. Because the building contained residential apartments, the group chose the night of the first Joe Frazier-Muhammad Ali heavyweight championship fight, an ...