Woman Made Bomb Threat to 'Protect Family' She didn't want mother, brother to fly the day before 9/11 By Rob Quinn, Newser Staff Posted Sep 14, 2011 3:18 AM CDT 4 comments Comments No explosives were found during a search of the Southwest plane, which departed around 10 minutes late. (AP Photo/Ted S. Warren, File) (Newser) – A New York woman who didn't want her mother and brother to fly the day before the tenth anniversary of 9/11 tried to keep them grounded by making a bomb threat, investigators say. Mary Purcell, 37, was arrested after authorities traced two phony bomb threats made against a Southwest Airlines flight departing from Tucson to her landline, the New York Post reports. "We felt that it was a credible threat,” said the chief of the Tucson Airport Authority Police. “We were already at a heightened state of alert, but more manpower was needed." Purcell, who was on probation for a forgery conviction, has been charged with falsely reporting a bomb threat and faces up to 10 years in prison if convicted.