The Olympic Committees of at least 5 European countries besides the U.S. have received terrorist threats before the games in Sochi.

Despite assurances by the Russian authorities , letters containing terrorist threats delivered to the Olympic Committees of Italy , Hungary, Germany , Slovenia and Slovakia have caused alarm and caused some nervousness in relation to security.

Kamikaze woman in the former Stalingrad Volgograd in Southern Russia: Oksana Aslanova was detonated inside the train station , 18 dead and 50 wounded - a threat to the Winter Olympics in Sochi.