Huge oil spill off the coast of Oman now covers hundreds of square miles

By Sarah El Sirgany, CNN (CNN) — An oil spill from a stranded tanker off the coast of Oman now covers an estimated 500 square miles (1,300 square kilometers), the environmental organization Greenpeace told CNN, prompting fears that a major ecological disaster could be unfolding in the Arabian Sea. The spill has spread to mainland