Massive wildfires in drought-parched Colorado and New Mexico tested the resources of state and federal crews Monday and underscored the need to replenish an aging U.S. aerial firefighting fleet that is needed to combat a year-round fire season. Wyoming diverted personnel and aircraft from two fires there to help with a 60-square-mile wildfire in northern Colorado. Canada also lent two aerial bombers to fight the blaze after the recent crash of a U.S. tanker in Utah.