Carlos Escude ( 1948- ) , Argentine political scientist and government adviser, obtained his doctorate with the support of a Fulbright Fellowship at Yale University in 1981 and won a Guggenheim Fellowship in 1984. During the 1990s, he served as special adviser to Argentina's foreign minister, Guido de Tella, under the presidency of Carlos Menem (1989-1999). Escude is therefore not only the explicator but also the agent of a notable transformation of Argentina's foreign policy in its relations with the world's more powerful nations, especially the United States.