SOUTH LAKE TAHOE, United States (AFP) — Thousands of people were ordered to evacuate Monday as a huge wildfire loomed down on a major US tourist spot, filling the air with choking smoke. The Caldor Fire has already torn through more than 270 square miles (700 square kilometers), razing hundreds of buildings. On Monday it was roaring towards South Lake Tahoe, the main resort town in the popular holiday area that straddles the California and […]