Mystery drones have been spotted over key U.S. military facilities, as well as other sensitive locations including President-elect Donald Trump’s Bedminster golf course. Reports say the drones are big, loud, and brightly lit, but often go dark as soon as they’re seen. Rep. Chris Smith (R-N.J.) also relayed reports that swarms of the drones have been coming off the ocean, and he detailed communications with U.S. defense officials who said they don’t have the authority to attack or bring down the drones.