Negotiations between Cuban revolutionary forces under Fidel Castro and United States officials for the release of Cuban prisoners fomenting revolution in other Latin American countries. Circa 1959. The two sides confer and discuss. View of the prisoners seated with officials and photographers around. Demonstrations in other Latin American countries, supported by the Castro loyalists in support of revolution. Police firing tear gas. Citizens covering nose and mouth due to tear gas. Police leading away a demonstrator. Seal on a building wall for the country of El Salvador. Police outside a building with various weaponry ready. Demonstrators running through city streets and tear gas and smoke in the streets.