Scientists and land stewards in Sierra Nevada pine forests are alarmed about the changing conditions inflaming the frequency and ferocity of mountain wildfires in recent years. Drought, insects, and climate warming are threatening millions of acres of mainly National Forest lands. One man, Jeremy Bluestein has a plan to save that landscape, one piece at a time. A tree expert of the Forest Service agrees it could work across the broader landscape. Vic Bedoian reports from Fresno.