Russian police officers guard an entrance of a cableway in Krasnaya Polyana, mountain Olympic cluster
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Sochi 2014: 'Security is number one priority' - Lord Coe

The Winter Olympics officially opens on Friday in Sochi.

The build-up has been overshadowed by security fears, human rights concerns and delays to preparations.

Daniel Sandford reports.

  • 01 Sep 2014
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