ABC advocated a program of social and economic reform and pledged themselves to Machado's overthrow. They employed propaganda and terror. Public buildings were bombed, and assassinations were carried out on government, military, and police officers. One of their most ambitious plots resulted in the death of two of Machado's top lieutenants. Guggenheim called on Machado to extend reforms. Machado responded by organizing the remaining loyal elements of his military and police into death squads.
With the escalation of violence on the island and Guggenheim's failures, the age of American paternalism in Cuba ended. United States diplomats had exhausted themselves trying to make something of the Cubans that they weren't. We would keep Guantanamo. The rest was left to the Cubans, the businessmen, and the mafioso.