Security intensifies ahead of Sochi Olympics

Threats of kidnappings have been sent to countries whose athletes are to participate in the games starting on Friday.

Security presence is heightened as the countdown for the Sochi Winter Olympics started, amid concerns of blasts akin to the Volgograd twin blasts which killed 34 people in December.

There is a huge, multilayered security operation where the games are to start on Friday, involving some 100,000 personnel, drones, robots, and sonar systems.

Al Jazeera’s Rory Challands has been watching the build-up in Sochi.

Source: Al Jazeera