I think as time goes on a majority of these fires will be proven arson. I don't believe energy beams had anything to do with Oregon fires. @Ken Anderson Without a fast-moving wind, the green grass and trees would show signs of burning. The only explanation is what our fire chief saw with his own eyes. The fire moving over 60 MPH burned the dry grass but at a distance, you cannot see any damage to the sagebrush. Up close you can see very light signs. The fairly new Catapeller doesn't show signs that fire even touched it unless close inspected. Had it been older with lots of grease on it, the story would be different. I have been through so many fires and never have I seen a fire moving so fast it wouldn't even blacken sagebrush or damage paint on a steel fence post. It is documented that this particular fire was from a cigarette thrown in dry grass.