Plot: 2013/07/22 Headlines: Thousands Join "Justice for Trayvon" Rallies Nationwide; Obama Questions "Stand Your Ground" Laws; Pentagon: 71 Guantánamo Prisoners to Receive Parole Hearings; FISA Court OKs New Order for Bulk Collection of Phone Data; Panama Releases Ex-CIA Officer Sought by Italy in Torture, Kidnap Case; Attacks Kill Dozens in Iraq; Palestinian Authority: Formal Talks Won't Happen Without Israeli Settlement Freeze; Venezuela Suspends U. S