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Twin Bombings in Russia Cast Cloud Over Olympics
Two suicide bomb attacks on consecutive days rocked the southern Russian city of Volgograd, a key railroad hub some 400 miles (640 km) northeast of Sochi, where the Winter Olympics start in early February. The first blast hit the central train station on Dec. 29, killing at least 17. The following day, at least 14 died when a bomb ripped through a trolleybus.
No group has claimed responsibility for the attacks, but attention immediately turned to the restive Russian republics in the nearby Caucasus, where an Islamist insurgency has blown hot and cold for over a decade.