Overview: 2013/08/21 Headlines: Opposition Claims Hundreds Killed in Syria Chemical Attack; Japan Increases Severity Level at Fukushima Nuclear Plant; U.S. Denies Suspension of Military Aid to Egypt; Bradley Manning Faces Sentencing at Military Trial; Report: NSA Surveillance Covers 75% of Online Traffic; Miranda Attorneys Threaten Legal Action Against UK; British Prime Minister Office's Involved in Forced Destruction of Guardian Hard Drives; Tech Website Groklaw Closes Down over Surveillance Fears; Report: U.S. Advances Facial Recognition Surveillance; Afghan Victims Testify at Sentencing Hearing of Accused Soldier; Prosecutors Rest Case in Ft. Hood Shooting Trial; Gunman Arrested After Georgia School Standoff; Report: NRA Compiles Database of Gun Owners; Interior Dept. Questions State Dept. Keystone Report