the move comes as the number of drones in the nation s skies has increased dramatically over the last two years. and in some cases, those droene have come dangerously close to passenger planes and police hpts. nbc s tom costello first to report on this. reporter: the department of transportation will make this formal announcement in a few hours, unveiling a task force with the unmanned aircraft system industry, the drone industry, which will come up with a system to register recreational drones in the country. up until now only commercial drones have had to be registered. the government has been very concerned about a series of close calls over the past year between drones and other aircra aircraft, especially planes and helicopters. drones have also crashed at sporting events, even on the white house lawn. and privacy advocates have been very concerned about drones hover is over private property, sometimes equipped with cameras.