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The BP oil spill was one of the worst environmental disasters to strike the United States and killed 11 men drilling a deepwater well in the Gulf of Mexico in 2010. The BP-leased Deepwater Horizon oil rig exploded off the coast of Louisiana while drilling a well 5,000 feet (1,500 meters) below sea level on April 20. A massive fleet of boats was deployed to try to skim the oil off the surface of the rough seas and chemical dispersants were dumped in huge quantities to try to prevent the oil from reaching sensitive coastal wetlands.
WASHINGTON (AP) — When the CIA killed al-Qaida's second-in-command in Yemen last month, Obama administration officials celebrated. But many experts are questioning whether the demise of another senior extremist, the latest in a long line of militants to be taken off the battlefield, made the United States and its allies any safer from terrorism.