August 19, 2016 12:27 am NBC10 Investigators Fire Drill Probe Forces Change A series of investigative reports into issues with fire drills at Philadelphia public schools has prompted the district to change policies. US & World Videos 9:46 Another NJ earthquake: The Lineup 2:54 Penn leaders reiterate to pro-Palestinian protesters that they need to pack up camp 1:44 Pro-Palestinian protesters remain on UPenn's campus despite warnings to disband 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out