New Castle County’s Public Safety Department will hold a celebration and recruiting event Saturday, Sept. 10 at the Christiana Mall. The event will be held between Nordstrom and Cabela’s and will go on from 12 p.m. until 4 p.m.  “We’ll celebrate our public safety, including police, fire, 911 communications, paramedics and the Office of Emergency Management,” said Sgt. Tracy Duffy, …