Reliable Source: Diner en Blanc returns to D.C., and tickets are still impossible to get

The blanc is back.In less than a month, Washingtonians who aren't on the list (or in the know) will be collectively scratching their heads as hordes of who's who wearing all white (not cream, not ivory, not navajo) spill out of Metro stations across the city, dragging portable tables for two in their wake. What exactly is going on here?