Firefighters last week began setting backfires to contain the Horton Fire, which continues to burn in unseasonally warm, dry conditions on the face of the Mogollon Rim. The Forest Service resorted to backfires due to rough, overgrown conditions that make it too dangerous for firefighters to engage the fire directly. That frightens many homeowners. …The controlled burns being used to tame the 1,100-acre Horton Fire are not managed fires – since they represent the only safe strategy to stop the human-caused blaze. …Numerous studies have proven that the Forest Service will have to substantially increase the use of managed fires to restore forest health and protect forested communities. …The key problem lies in the increase in tree densities across millions of acres of Arizona ponderosa pine forests in the past century. …The problem has been compounded by approval of homes and subdivisions in that now endangered Wildland-Urban Interface.