Investigators have closed an investigation into the shooting by Bolshevik revolutionaries of Russia's last Tsar Nicholas II and his family in 1918, Itar-Tass news agency reported Thursday.
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Steve Kroft reports on why our roads, bridges, airports and rail are outdated and need to be fixed
Brown was unarmed when he was shot and killed by Ferguson police officer Darren Wilson on Aug. 9, setting off protests and debate
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