[IMG]http://d.yimg.com/a/p/afp/20100508/capt.p***o_1273348197347-1-0.jpg?x=130&y=86&q=85&sig=WfUrXUDI6IwrZ3PMrIPkww--[/IMG]AFP - BP was dealt a setback Saturday to capping a massive oil spill in the Gulf of Mexico after a containment dome encountered flammable hydrate formations as it was lowered onto the leak site.
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