The 1970s produced further research on United States (U.S.) involvement in the 1973 overthrow of Salvador Allende's elected government in Chile. The coup reinforced the American "fears" of socialism succeeding in America. That year, the NACLA report called "Facing the Blockade" documented President Richard Nixon's Administration's "invisible blockade" that denied Allende and his regime's "credit arrangements necessary for export-import operations". Salvador Allende responded to NACLA's book called "New Chile" in his speech to the United Nations by saying, "If you want to know how the U.S. has affected Chile, just read "New Chile" by NACLA."