FILE – In this Thursday, Oct. 24, 2013 file photo the Olympic Bolshoy stadium, in the background, and Iceberg stadium for figure skating and short track speed skating events during the 2014 Olympic Games, are illuminated in the Olympic park in the coastal cluster in the Black Sea resort of Sochi, Russia. The organizers of the 2014 Winter Games in Sochi have introduced some of the most extensive identity checks and sweeping security measures ever to be seen at an international sports event, trying to fulfill their pledge to make the Winter Games in Sochi “the safest Olympics in history.” (AP Photo/Lesya Polyakova, File)