As a tough but smart Italian-American kid, Ernest Cuneo played Ivy League football at Columbia University and was in the old Brooklyn Dodgers NFL franchise before becoming a City Hall lawyer and “Brain Trust aide to President Roosevelt. He was on the payroll of national radio columnist Walter Winchell and mingled with the famous and powerful. But his status as a spy remained a secret, hiding in plain sight.   During this time, Cuneo began a love affair with one of Churchill s agents at Rockefeller Center agents – Margaret Watson, a beautiful Canadian woman with a photographic memory ideal for spycraft. In one nighttime attack, Watson was nearly smothered to death by a Nazi assassin inside her women’s dormitory near Rockfeller Center. Cuneo’s transformation from a gridiron athlete into a high-stakes intelligence go-between and political influencer is one of the great untold stories of American espionage. He has remained “invisible” in