The New Canaan-based Voices of September 11th and the Rutgers University School of Social Work will host the symposium "Promoting Resiliency in Communities Impacted by Trauma: Identification and Treatment of Long Term Needs" Friday, Jan. 17. The symposium will take place from 8:30 a.m. to 3:30 p.m. at Rutgers University's Trayes Hall, Douglass Campus Center, 100 George St., New Brunswick, N.J.