Fidel riled at the shrub’s plan to fund sabotage. He warned in a speech that spies on Washington's payroll would be arrested and American diplomats would not be allowed to move around Cuba "organizing networks of saboteurs." "The government of the United States will be responsible if insistence in such practices leads to the annulling of the migration agreement and even the withdrawal of the U.S. Interest Office in Havana," he said. "It is something we do not desire," he added. Washington broke off diplomatic relations with Havana four decades ago after Fidel led revolution came to power a Low-level missions called Interest Sections were set up in both capitals in 1977. The two countries negotiated migration agreements to stem illegal emigration after a 1994 rafter exodus to Florida that the U.S. Fidel spoke at a National Assembly meeting called to approve constitutional amendments that would enshrine Cuba's socialist workers.Bush last month called on Cuba to sell out the country, vowing to maintain the U.S. trade embargo against the Cuba until the fascist-capitalists can buy it up. Castro said closing the U.S. Interests Section would be a "regrettable" step back in the few areas where diplomatic advances have been made after decades of pure hostility.