REVIEW: THE KENNEDY IMPERATIVE by Leon Berger Leon Berger's THE KENNEDY IMPERATIVE, Book 1 of THE KENNEDY TRILOGY, brings to vivid life an essential historical era more than 5 decades in the past. I lived through this time as a child, so it is doubly exciting to.peruse this novel. Antihero Philip Marsden, a fluent speaker of Russian and kind of a career wild card, is imported by his employer, the CIA, to.Berlin. to liaise with the military commandant. A few years earlier, during the McCarthy Hysteria, he would have been under suspicion, for his Russian mother. Not.o my Russian, but quite possibly double agent, as well.