 extending the nation's home sales slump into its third year. Many economists are forecasting that mortgage rates will ease further in coming months. I'm Alex Fagan. A new initiative to keep an eye on swimmers and sharks off New York City beaches with surveillance drones spurring a backlash from shorebirds. It seems they don't appreciate the drones invading their airspace, so they've been swarming the devices, forcing pilots to ground the drones.