Associated Press: Fidel Castro says the spreading oil slick fouling the Gulf of Mexico is proof that the world’s most powerful governments cannot control large corporations that now dictate the public’s destiny. Officials are rushing to seal an underwater oil gusher triggered after a deep-water rig operated by BP PLC exploded and sank on April 20, killing 11 people. It still is unclear whether some of the 3 million gallons of spilled crude could eventually reach Cuba’s shores — though government …