El que ideo la idea de contener el comunismo, diplomático modelo que durante poco tiempo fue embajador en Muscó en los últimos días de Stalin. Escribió un artículo en Foreign Affairs, bajo el pseudónimo de 'X' que guía en parte la política exterior norteamericana de los 50 a los 70. Todo un realista:
The political personality of Soviet power as we know it today is the product of ideology and circumstances: ideology inherited by the present Soviet leaders from the movement in which they had their political origin, and circumstances of the power which they now have exercised for nearly three decades in Russia. There can be few tasks of psychological analysis more difficult than to try to trace the interaction of these two forces and the relative role of each in the determination of official Soviet conduct. Yet the attempt must be made if that conduct is to be understood and effectively countered.Política en estado puro.