October 23, 2013 5:26 pm Audio Ray Gun, Twitter Tracking Latest in Police Tech New Policing Tech: The A-WASP audio gun uses sound to disperse crowds and TrackingPoint rifle uses fighter jet technology to follow targets. US & World Videos 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus 2:17 Clear the Shelters: Meet Tails