International Olympic Committee (IOC) President Thomas Bach (3rd L), Russian President Vladimir Putin (4th L) and Claudia Bach (L) attend the Opening Ceremony of the Sochi 2014 Winter Olympics at Fisht Olympic Stadium on February 7, 2014 in Sochi, Russia.
International Olympic Committee (IOC) President Thomas Bach (3rd L), Russian President Vladimir Putin (4th L) and Claudia Bach (L) attend the Opening Ceremony of the Sochi 2014 Winter Olympics at Fisht Olympic Stadium on February 7, 2014 in Sochi, Russia. - 

The facilities for the Winter Olympics in Sochi, Russia cost an estimated $50 billion to build.  Some experts at the Carnegie Moscow Center, a public policy research group, are among those claiming that process was riddled with corruption.  With the Sochi Opening Ceremony due to start today, Steve Rosenberg, one of the BBC's senior correspondents in Russia, joined us to help explain.

Click play on the audio player above to hear more.

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