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He was the lone terrorist who was caught alive for waging a war against India and taking close to 160 innocent lives. Ajmal Kasab was hanged at Pune's Yerwada jail on November 21. While his remains were buried inside the premises of the jail his crime was caught on camera and his chilling confession recorded on tape. His death brings some closure to the families of the victims of his brutal crime.Read MoreA U.S. Marine reservist was taken into custody in Arlington National Cemetery near the Pentagon early today after he was found to be carrying in his backpack materials initially deemed "very concerning." The FBI said later the materials were non-explosive.

Update at 5:13 p.m. ET: The FBI said the items, which have not been identified officially, were non-explosive but were undergoing further testing at the laboratory in Quantico, the AP reports.

Bomb-sniffing dogs and FBI agents wearing haz-mat suits searched a brick townhouse in Alexandria, Va., and removed items. Nothing suspicious was found in his car, authorities said.

The FBI said the suspect, 22-year-old Lance Cpl. Yonathan Melaku, is a naturalized citizen who was born in Ethiopia. He joined the Marine Corps Reserves in September 2007, is listed as a motor