WASHINGTON - Homeland security officials on Friday hinted at a possible face-saving deal to end their standoff with a handful of states over new driver's license rules — a dispute that, left unresolved, could cause big air travel headaches. For weeks, the Homeland Security Department has been headed toward a showdown with some states over a law called Real ID, which would require new security measures for state-issued driver's licenses. Yet a late Good Friday letter from a top DHS official suggested Washington may be backing away from a messy fight. South Carolina, Maine and Montana are the only states...