Delta warned about rodent droppings

Most air travelers have encountered something gross on board planes at one time or another, like old food crumbs or stained seats. But now comes this: rodent droppings in the cabin. The U.S. Food and Drug Administration sent a warning letter to Delta Air Lines last week after inspectors found "the presence of rodent excreta pellets and rodent urine stains" near the food preparation and storage areas of one of the carrier’s planes.