SAN FRANCISCO — With the massive oil spill in the Gulf of Mexico fouling waterways, wildlife and beaches, President Barack Obama is expressing deepening concern about the failure to plug the five-week old leak.

From the Washington Post: The growing oil slick in the Gulf of Mexico is not only an environmental danger, but also a widening political headache for President Obama, who just last month agreed to open vast stretches of the U.S. coastline to oil drilling.