An Olympic volunteer drags a banner bearing the Olympic rings during final preparations at the finish area of the Alpine ski course ahead of the Sochi 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia.(AP Photo/Gero Breloer)

An unidentified athlete passes by the Olympic rings in the Cross Country stadium prior to the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Matthias Schrader)

Cross country skiers pass by the Olympic rings as they train for the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gregorio Borgia)

Workers prepare the finish area of the biathlon stadium prior to the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gregorio Borgia)

The sun shines through the Olympic rings at the Cross Country stadium at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gregorio Borgia)

Hungary's Milan Szabo passes by Olympic rings as he trains in the Cross Country stadium of the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Dmitry Lovetsky)

Workers and volunteers work next to the shooting area of the Biathlon stadium, at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Lee Jin-man)

Workers and volunteers prepare the shooting area of the Biathlon stadium, at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Lee Jin-man)

Members of the International Olympic Committee gather for a photo in front of the Olympic rings while touring the Coastal Cluster athlete's village at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/David Goldman)

An Olympic worker overlooks the Caucasus Mountains from the Alpine ski course ahead of the Sochi 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Charles Krupa)

A worker cleans in front of the Bolshoy Ice Dome, site of the ice hockey competitions, during final preparations for the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/Christophe Ena)

The sun shines through the Olympic rings at Olympic Park ahead of the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/Christophe Ena)

Norway's Lars Berger shoots during a training session at the Biathlon stadium, at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Felipe Dana)

France's Martin Fourcade skis past the Olympic rings during a training session at the Biathlon stadium, at the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Krasnaya Polyana, Russia. (AP Photo/Lee Jin-man)

Russian women pose for snapshots next to Olympic rings in Sochi, Russia, Tuesday, Feb. 4, 2014. The opening ceremony for the 2014 Winter Olympics will be held on Feb. 7, and the competition will run until Feb. 23. (AP Photo/Bernat Armangue)

A Russian Olympic volunteer poses for snapshots next to the Olympic rings in Sochi, Russia, Tuesday, Feb. 4, 2014. The opening ceremony for the 2014 Winter Olympics will be held on Feb. 7. (AP Photo/Bernat Armangue)

Sigita Mazonaite, 24, a volunteer from Lithuania leaps as she is photographed by her friend, in front of the Olympic rings ahead of the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E)

Workers walk on the roof of the Bolshoy Ice Dome, which is the venue for the ice hockey matches, ahead of the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E)

People are silhouetted against the sky as they walk past the Olympic rings ahead of the 2014 Winter Olympics, Tuesday, Feb. 4, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E)

The Olympic rings decorate the side of a bus as members of the China short track speed skating team arrive at the Coastal Cluster athlete's village for the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Sochi, Russia. (AP Photo/David Goldman)

A girl walks past a banner showing the Olympic rings on Monday, Feb. 3, 2014, in Krasnaya Polyana, Russia, as preparations for the 2014 Winter Olympics continue. (AP Photo/Jae C. Hong)

A Japanese skater is blurred by the use of a slow shutter speed on the camera as he passes the Olympic Rings during a warmup lap at Adler Arena Skating Center at the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Sochi, Russia. (AP Photo/Peter Dejong)

Flags with the Olympic rings flutter from the stands at the finish area of the Alpine ski course ahead of the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Krasnaya Polyana, Russia. (AP Photo/Alessandro Trovati)

A worker is seen past the Olympic rings as he stands atop the cauldron during preparations for the 2014 Winter Olympics Monday, Feb. 3, 2014, in Sochi, Russia. (AP Photo/Patrick Semansky)

International Olympic Committee President Thomas Bach peers out to the audience over the Olympic rings as he speaks during a press conference at the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Sochi, Russia. (AP Photo/David Goldman)

A worker hangs Olympic rings posters at the ski jumping venue during preparations for the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Krasnaya Polyana, Russia. (AP Photo/Dmitry Lovetsky)

Workers spray Olympic rings on a street to mark the Olympic lane for the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Krasnaya Polyana, Russia. The Olympic lane gives exclusive access for Olympic transport and official vehicles. (AP Photo/Gero Breloer)

A man walks along the street past a banner showing the Olympic rings on Monday, Feb. 3, 2014, in Krasnaya Polyana, Russia, as preparations for the 2014 Winter Olympics continue. (AP Photo/Jae C. Hong)

A man poses for a photo beneath the Olympic rings at Olympic Park, prior to the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty)

A stray dog walks past the Olympic Rings in Olympic Park, three days before the start of the 2014 Winter Olympics, Monday, Feb. 3, 2014, in Sochi, Russia. A pest control company which has been killing stray dogs in Sochi for years told The Associated Press on Monday that it has a contract to exterminate more of the animals throughout the Olympics. (AP Photo/Robert F. Bukaty)

The Olympic rings at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

The Olympic rings at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

The Olympic rings on the Bolshoy Ice Dome at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

The Olympic flag at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

The Olympic flag and the Olympic cauldron at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

The Olympic rings at the Olympic Park of the Sochi 2014 Winter Olympics in Sochi, Russia on Monday, 3rd Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

Slovakia's Daniela Kotschova skis in front of the Olympic rings as she trains at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

Slovakia's Daniela Kotschova skis in front of Olympic rings as she trains at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

The sun shines above the Olympic rings at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

A woman jumps as she poses for a photo in front of the Olympic rings at Olympic Park ahead of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Sochi, Russia.(AP Photo/Natacha Pisarenko)

Britain's Cross-country skier Amanda Lightfoot, left, jumps in the air as her coach Simon Allanson takes a snapshot in front of Olympic rings as she trains at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

A volunteer poses for a photograph beneath the Olympic rings at Olympic Park ahead of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Sochi, Russia.(AP Photo/Felipe Dana)

Slovakia's Cross-Country skier Alena Prochazkova, right, and Slovakia's Daniela Kotschova pose for a snapshot in front of Olympic rings as they train at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

An athlete skis in front of Olympic rings at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

A worker standing atop the Olympic cauldron is seen through the Olympic rings at Olympic Park ahead of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Sochi, Russia. (AP Photo/Natacha Pisarenko)

Members of the Slovenian Cross-country ski team ski in front of Olympic rings at Laura Cross-country Ski & Biathlon Center of the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gero Breloer)

The Olympic rings are seen on glass door to the Iceberg Skating Palace as a reflection of Sochi is seen at the 2014 Winter Olympics, Sunday, Feb. 2, 2014, in Sochi, Russia. (AP Photo/David Goldman)

People ride bicycles around the Olympic rings in the Athletes Village prior to the start of the 2014 Winter Olympics in the Black Sea resort town of Sochi, Russia, Saturday, Feb. 1, 2014. The opening ceremony for the games will be held on Feb. 7. (AP Photo/Antonin Thuillier, Pool)

A woman stands beneath the Olympic rings while having her photo taken inside the Olympic Park at the 2014 Winter Olympics, Saturday, Feb. 1, 2014, in Sochi, Russia. (AP Photo/David Goldman)

The Olympic rings are seen outside the Bolshoy Ice Dome, site of the ice hockey competitions at the 2014 Winter Olympics, Friday, Jan. 31, 2014, in Sochi, Russia. (AP Photo/David Goldman)

Workers squeegee water over the Olympic rings to freeze it into the ice as they prepare the field of play for the 2014 Winter Olympics inside the Ice Cube Curling Center, Friday, Jan. 31, 2014, in Sochi, Russia. (AP Photo/David Goldman)

Andreevna Mariya Smorodskaya, a make-up artist for the opening ceremonies, takes a photo of the Olympic rings against the Bolshoy Ice Dome during a roof light display of moving flames, at the 2014 Winter Olympics, Friday, Jan. 31, 2014, in Sochi, Russia. (AP Photo/David Goldman)

A Russian man pauses for photos in front of the Olympic rings, Thursday, Jan. 30, 2014, in Krasnaya Polyana outside the Black Sea resort of Sochi, Russia, where the snow and sliding sports venues for the 2014 Winter Olympics are located. (AP Photo/Jae C. Hong)

Katya Ermakova wears a glove with the Olympic rings embroidered on, Thursday, Jan. 30, 2014, in Krasnaya Polyana outside the Black Sea resort of Sochi, Russia, where the snow and sliding sports venues for the 2014 Winter Olympics are located. (AP Photo/Jae C. Hong)

Aleksei Nagornov reviews photos while standing in front of the Olympic rings, Thursday, Jan. 30, 2014, in Krasnaya Polyana outside the Black Sea resort of Sochi, Russia, where the snow and sliding sports venues for the 2014 Winter Olympics are located. (AP Photo/Jae C. Hong)

A volunteer poses in front of Olympic rings near the Bolshoy Ice Dome in the Olympic Park as preparations continue for the 2014 Winter Olympics, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

Britain short track speed skater Jack Whelbourne, right, plays around with coach Stuart Horsepool behind his back as he takes a picture of the Olympic rings as the team arrives at the coastal athlete's village for the 2014 Winter Olympics, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/David Goldman, Pool)

The Olympic rings are reflected in a puddle as a traveler carries bags out of the central train station, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Two women walk arm in arm past the Olympic rings on display, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

The Olympic rings hang above travelers leaving the central train station, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Visitors pose in front of the Olympic rings at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

Olympic rings for the 2014 Winter Olympics are installed in the Black Sea resort of Sochi, southern Russia, late Tuesday, Sept. 25, 2012. With the Winter Olympics a year away, IOC President Jacques Rogge praised Sochi organizers on Wednesday, Feb. 6, 2013 and defended the $51 billion price tag. (AP Photo/Ignat Kozlov))

Olympic rings for the 2014 Winter Olympics are installed in the Black Sea resort of Sochi, southern Russia, late Tuesday, Sept. 25, 2012. With the Winter Olympics a year away, IOC President Jacques Rogge praised Sochi organizers on Wednesday, Feb. 6, 2013, and defended the $51 billion price tag. (AP Photo/Ignat Kozlov))

Olympic rings for the 2014 Winter Olympics are installed in the Black Sea resort of Sochi, southern Russia, late Tuesday, Sept. 25, 2012. With the Winter Olympics a year away, IOC President Jacques Rogge praised Sochi organizers on Wednesday, Feb. 6, 2013 and defended the $51 billion price tag. (AP Photo/Ignat Kozlov))

SOCHI, Russia - Photo shows giant Olympic rings, measuring around 10 meters by 15 meters, at the airport in Sochi, Russia, on Feb. 4, 2013. The Sochi Winter Olympics will begin Feb. 7, 2014. (Kyodo)

SOCHI, Russia - Photo shows giant Olympic rings, measuring around 10 meters by 15 meters, at the airport in Sochi, Russia, on Feb. 4, 2013. The Sochi Winter Olympics will begin Feb. 7, 2014. (Kyodo)