Ohio NASA Facility Locked Down, Reports of Gunman Spokesperson will not confirm whether gunman is involved By Newser Editors and Wire Services Posted Nov 5, 2010 9:56 AM CDT 0 comments Comments In this combo made from file photos, a Continental Airlines plane takes off from Cleveland Hopkins Airport over the NASA Glenn Research Center in Cleveland, top. (AP Photo) (Newser) – A sprawling NASA research center next to Cleveland's airport is under lockdown amid reports of a possible gunman. NASA Glenn Research Center spokeswoman Sally Harrington wouldn't say whether police were checking for a gunman but she says the complex was placed under "complete lockdown" this morning. The center is located at the edge of Cleveland Hopkins International Airport along the Cleveland-Brook Park border. Brook Park police withheld details on how they were handling the situation; Cleveland police say they aren't involved. The research center has more than 3,400 employees and contract workers. An airport spokewoman says its operations are unaffected.