A suspected drone seen over Ridge, New York, on December 12.Newsday LLC/Newsday via Getty ImagesDrone sightings have been reported up and down the eastern US in recent weeks.Officials say they're investigating the mysterious aircraft — many of which have actually been crewed aircraft.But federal agencies stress that they need more authority to deal with the drone threat.Federal agencies are arguing they need more authority so they can better deal with drones amid the surge in unexplained drone sightings that have caused confusion throughout the eastern US in recent weeks.Department of Homeland Security and FBI officials said on Saturday that they are limited right now in how they can respond to the reported drone sightings that have stretched from Maryland to Massachusetts since mid-November.Much of the mystery has centered on New Jersey, where drones have been reported around military facilities and critical infrastructure sites.