…Analysts say 16 percent of the West’s so-called wildland-urban interface is now developed, and already fire suppression consumes nearly half of the U.S. Forest Service budget. If that encroachment reaches 50 percent of the area where private lands border federal forests, economist Ray Rasker of non-profit research group Headwaters Economics said, the costs would climb to $6 billion — more than the current Forest Service budget…