Associated Press: The chief executive of BP PLC walked the oil-stained sands of a closed Louisiana beach as workers in white coveralls and yellow boots tended to equipment being used to keep away crude gushing into the Gulf of Mexico. CEO Tony Hayward talked with the workers Monday at Fourchon Beach while the crews tended to booms meant to soak up the oil from the Deepwater Horizon disaster. Reporters were kept at a distance. Fourchon Beach is one of the few sandy beaches in Louisiana, where …