Sochi goes into lockdown as Olympic Games approach
Unprecedented security measures have been put in place ahead of next month's Winter Olympics in Sochi. Fear of attack has been amplified by the recent double bombing in Volgograd that killed 34 people. Duration 01:13
Unprecedented security measures have been put in place ahead of next month's Winter Olympics in Sochi. Fear of attack has been amplified by the recent double bombing in Volgograd that killed 34 people. Duration 01:13
