Russia: Can sport be a catalyst for change?

Moscow is getting ready to host the World Athletics Championships - but the competition is already being overshadowed by controversy both on and off the track.

There have been protests over anti-gay laws passed by the Russian Parliament, which have sparked international condemnation and calls for Russia to be stripped of next year's Winter Olympics.

The event has also been hit by a series of doping scandals.

David Bond reports from Moscow.