Gulf of Mexico oil clean-up continues

Oil is seen on the surface of the Gulf of Mexico in an aerial view of the Deepwater Horizon oil spill off the coast of Mobile, Alabama, in this handout photograph taken from a US Coast Guard HC-144 Ocean Sentry aircraft on May 6, 2010 and obtained on May 9, 2010. BP Plc engineers searched on Sunday for ways to control gushing oil from the ruptured Gulf of Mexico well after a setback with a huge metal containment dome dashed hopes for a quick, temporary solution to a growing environmental disaster. Picture taken May 6, 2010.