Reuters: An oil spill that has blackened beaches at a Thai holiday island was having an extreme impact on tourism and could spread to the coast of the mainland and affect the fishing industry, officials and an environmental group said on Tuesday. Tourists were pouring off the island of Koh Samet, 230 km (142 miles) southeast of Bangkok, while soldiers and volunteers in white bio-hazard suits struggled to clear black oily sludge off the white sand. "We're working to move visitors to other locations if they...