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CNN's Brian Todd has an exclusive look at how much damage toothpaste tube bombs - a potential threat at the Sochi Winter Olympics - can leave behind.
CNN's Brian Todd reports on a terror cell that downed an Egyptian helicopter with surface-to-air missiles and how the weapons obtained in Libya are threatening U.S. soldiers.
CNN's Tom Foreman explains what the U.S. might do to help stop the civil war raging in Syria after an alleged chemical attack killed more than one thousand people.
Police in Ohio arrested a man at a "Dark Knight Rises" screening with multiple weapons. Deborah Feyerick reports.
CNN's Brian Todd reports on the Syrian rebels' capture of regime's weapons.