"By the time of his assassination in 1963, John F. Kennedy stood at the helm of the greatest power the world had ever seen, a booming American nation he had steered through some of the most perilous diplomatic standoffs of the Cold War era. Born in 1917 to a striving Irish American family that had ascended the ranks of Boston's labyrinthine political machine, Kennedy was bred for government, and his meteoric rise to become the youngest president ever...