dif·fu·sion, noun: the spreading of something more widely Diffusion is the podcast of Carnegie Corporation of New York, one of the first grantmaking foundations in the United States established by Andrew Carnegie in 1911. Our mission? To promote the advancement and diffusion of knowledge and understanding around issues of peace, education and democracy. Twenty-five years after the fall of the Soviet Union, the U.S.-Russian relationship is in crisis. This podcast series offers nuanced debate about Russia, its current and future relations with the United States and the impact of this critical relationship on international peace and security.