“The two bombs that killed at least 31 people in the Russian city of Volgograd on Sunday and Monday confirmed an uncomfortable truth for the organizers of the 22nd Winter Olympics, which will open in six weeks: no Olympics in history has faced such a clear threat of terrorist attacks. In preparation, Russia has established a special security zone in Sochi that will run 60 miles along the coast of the Black Sea, and 25 miles inland. Entrance will be restricted to residents, workers and ticket-holders, all of whom will have been screened in advance. Drones will patrol the sky, speedboats the sea, and Russian troops the surrounding mountains.”
Source:Volgograd Bombings: Russia’s Olympics Haunted by Ghosts of Munich | TIME.com