This aerial photo shows a fire in the town of Lac-Megantic as seen from a Sûreté du Québec helicopter Saturday, July 6, 2013 following a train derailment that sparked several explosions in Lac Megantic, Quebec.
This aerial photo shows a fire in the town of Lac-Megantic as seen from a Sûreté du Québec helicopter Saturday, July 6, 2013 following a train derailment that sparked several explosions in Lac Megantic, Quebec. Nearly 50 people died in the disaster. (AP Photo/Sûreté du Québec via The Canadian Press)