The remains of a home and cars smolder after a wildfire November 29, 2016 in Gatlinburg, Tennessee. Thousands of people have been evacuated from the area and over 100 houses and businesses were damaged or destroyed after drought conditions helped the fire spread through the foothills of the Great Smoky Mountains. (Photo by Brian Blanco/Getty Images) With more than 14,000 people evacuated from the Gatlinburg, Tennessee area and more than 400 homes and businesses damaged or destroyed, the Sevier county wildfire may have been the largest in Tennessee in the last 100 years. But what caused the fire? Experts...