The ""invisible government"" gathers intelligence and conducts espionage- namely the CIA which has now extended its ""special operations"" from its original intentions (gathering intelligence, when it was first founded by Truman) to cover all kinds of political warfare, even ""full-scale invasion."" The authors believe that the ""dagger has become more important than the cloak,"" and that the people have a right to know in what says the CIA has overstepped while Dulles, with his casual tweedy charm, has been permitted to ""engage in backstage political manoeuvers... with almost unlimited funds."" Monitoring its activities, chiefly from newspapers and the extant literature, they document the unfortunate (here it's ""pocketsized"") Bay of Pigs invasion, the U-2 episode (to which they earlier devoted a whole book), and the various kinds of interference run in Burma, Indonesia, Laos, Vietnam, Guatemala, and elsewhere. They also discuss other divisions of the Invisible Government, techniques used, black radio"" operations, etc., etc. Where, in Vietnam for instance, the blame cannot be firmly substantiated, the covert inference or unanswered question will help to point a finger. This is not always a technique which leads to reader-confidence, even though the book has been presumbly written in his interests, with a larger purpose-- restricting the power of this branch through stronger Presidential and Congressional controls. The tone is certainly comminatory.