Unidentified drones spotted over US bases in the UK, do not appear belong to 'hobbyists'

Fox News chief national security correspondent Jennifer Griffin has the latest on efforts to find out about the unusual drone activity on'Special Report.' Unidentified drones have been spotted over joint U.S.-U.K. bases in the United Kingdom for nearly a week. Fox News' Jennifer Griffin reports that four U.S. military bases in the U.K. that house the American F-15 Strike Eagle and F-35 fighter jets have been targeted by "swarms of small drones" since Wednesday, Nov. 20. Military officials say they are "alarmed" at what appears to be a coordinated effort to test security at RAF Lakenheath, RAF Mildenhall and RAF Feltwell in eastern England, as well as RAF Fairford in southwestern England. The U.K. military has sent around 60 personnel to protect the bases being targeted by multiple drone incursions.