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Russia says it rehearsed 'massive' nuclear strike

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Liberia election results: George Weah and Joseph Boakai face run-off vote

Brazil drought reveals ancient rock carvings of human faces

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Hamas hostages: Families 'worried sick' for relatives held in Gaza

'Horrific' Russian attack on postal depot kills six in eastern Ukraine

Supreme Court says Missouri can't bar local police from helping to enforce federal gun laws