Workers install the Sochi Olympics logo during the women's slopestyle qualification during the Sochi 2014 Winter Olympics in Sochi, Russia on Thursday, 6th Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

Workers install the Sochi Olympics logo during the women's slopestyle qualification during the Sochi 2014 Winter Olympics in Sochi, Russia on Thursday, 6th Feb., 2014. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

Rakennusty?t jatkuvat Gornaja Carousellin hiihtokeskuksessa during the Sochi 2014 Winter Olympics in Sochi, Russia on XXth Feb., 2014. LEHTIKUVA / Jussi Nukari *** FINLAND OUT. NO THIRD PARTY SALES. ***

Rakennusty?t jatkuvat Gornaja Carousellin hiihtokeskuksessa during the Sochi 2014 Winter Olympics in Sochi, Russia on XXth Feb., 2014. LEHTIKUVA / Jussi Nukari *** FINLAND OUT. NO THIRD PARTY SALES. ***

(140205) -- SOCHI, Feb. 5, 2014 (Xinhua) -- Staff look on as a bobsleigh passes by during a training ahead of Sochi 2014 Olympic Winter Games in Sochi, Feb. 4, 2014. (Xinhua/Fei Maohua) (SP)RUSSIA-SOCHI-OLYMPIC WINTER GAMES-TRAINING PUBLICATIONxNOTxINxCHN Sochi Feb 5 2014 Xinhua Staff Look ON AS A bobsleigh Pass by during A Training Ahead of Sochi 2014 Olympic Winter Games in Sochi Feb 4 2014 Xinhua Fei SP Russia Sochi Olympic Winter Games Training PUBLICATIONxNOTxINxCHN

(140205) -- SOCHI, Feb. 5, 2014 (Xinhua) -- walk near the Sochi railway station in Sochi, Russia, Feb. 5, 2014. The opening ceremony for the 2014 Winter Olympic Games will kick off on Feb. 7 here. (Xinhua/Wang Haofei) (SP)OLY-RUSSIA-SOCHI-VIEW PUBLICATIONxNOTxINxCHN Sochi Feb 5 2014 Xinhua Walk Near The Sochi Railway Station in Sochi Russia Feb 5 2014 The Opening Ceremony for The 2014 Winter Olympic Games will Kick Off ON Feb 7 Here Xinhua Wang SP Oly Russia Sochi View PUBLICATIONxNOTxINxCHN

(140205) -- SOCHI, Feb. 5, 2014 (Xinhua) -- A woman comforts her baby in a central park in Sochi, Russia, Feb. 5, 2014. The opening ceremony for the 2014 Winter Olympic Games will kick off on Feb. 7 here. (Xinhua/Wang Haofei) (SP)OLY-RUSSIA-SOCHI-VIEW PUBLICATIONxNOTxINxCHN Sochi Feb 5 2014 Xinhua A Woman comforts her Baby in A Central Park in Sochi Russia Feb 5 2014 The Opening Ceremony for The 2014 Winter Olympic Games will Kick Off ON Feb 7 Here Xinhua Wang SP Oly Russia Sochi View PUBLICATIONxNOTxINxCHN

(140205) -- SOCHI, Feb. 5, 2014 (Xinhua) -- A lot of snow is seen in the Endurance Olympic Village called Sloboda in Sochi, Russia, Feb. 4, 2014. The Endurance Olympic Village is located on the Psekhako Ridge and has accommodation for 1,100 athletes participating in sports such as cross-country skiing and biathlon, as well as delegation members. (Xinhua/Li Gang) (SP)OLY-RUSSIA-SOCHI-ENDURANCE VILLAGE SLOBODA PUBLICATIONxNOTxINxCHN Sochi Feb 5 2014 Xinhua A Lot of Snow is Lakes in The Endurance Olympic Village Called Sloboda in Sochi Russia Feb 4 2014 The Endurance Olympic Village is located ON The Ridge and has Accommodation for 1 100 Athletes participating in Sports such AS Cross Country Skiing and Biathlon AS Well AS Delegation Members Xinhua left Monitoring SP Oly Russia Sochi Endurance Village Sloboda PUBLICATIONxNOTxINxCHN

Palm trees 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. ***

Palm trees outside the Adler Arena 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. ***

Sun reflects from the Black Sea seen from 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. ***

Palm trees 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. ***

Palm trees 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. ***

Flag of Finland 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 flags of the participating countries 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. ***

View to the mountains from 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. ***

SOCHI, Russia - A man stands in front of an Olympic countdown clock in Sochi, Russia, on Jan. 28, 2014, as Russia is on high alert against terrorist acts before the opening of the Winter Games the following month. (Kyodo)

SOCHI, Russia - An officer stands in front of an official Olympic shop in Sochi, Russia, on Jan. 28, 2014, as part of Moscow's efforts to take precautions against terrorist attacks before the opening of the Winter Games the following month. (Kyodo)

SOCHI, Russia - Photo shows national flags flying in the village for ice sports athletes in Sochi, Russia, on Jan. 30, 2014, the opening day of the facility eight days before the start of the Winter Games. (Kyodo)

SOCHI, Russia - Stray dogs are pictured on Jan. 16, 2014, near the Fisht Olympic Stadium, the venue of the opening and closing ceremonies for the Sochi Winter Games in Sochi, Russia. Exterminators contracted by the city government said the plan to eradicate stray dogs in the area is nearly complete, ahead of the Feb. 7 opening of the Games. (Kyodo)

SOCHI, Russia - Preparations are underway at a track for snowboarding events at the Rosa Khutor Extreme Park in Sochi, Russia, on Jan. 28, 2014, ahead of the Feb. 7 opening of the Sochi Olympic Games. (Kyodo)

SOCHI, Russia - With 10 days left until the opening of the Sochi Olympic Games, snow conditions are good at the course for mogul events in the Rosa Khutor Extreme Park in Sochi, Russia, on Jan. 28, 2014, with ample snowfall. (Kyodo)

SOCHI, Russia - Preparations using heavy machinery are underway near the finishing line of a track for snowboarding events at the Rosa Khutor Extreme Park in Sochi, Russia, on Jan. 28, 2014, ahead of the Feb. 7 opening of the Sochi Olympic Games. (Kyodo)

SOCHI, Russia - Final preparations are underway near the finishing line of a track for snowboarding events at the Rosa Khutor Extreme Park in Sochi, Russia, on Jan. 28, 2014, ahead of the Feb. 7 opening of the Sochi Olympic Games. (Kyodo)

Police patrol though the area of Olympic media accommodations as the Fisht Olympic Stadium stands in the background, Thursday, Jan. 30, 2014, in Sochi, Russia. The Fisht Olympic Stadium will be the site of the 2014 Winter Olympic game's opening ceremony on Feb. 7. (AP Photo/David Goldman)

SOCHI, Russia - Facilities at the Sochi Olympic Park, including the Medals Plaza (C), where victory ceremonies will be held, and the Iceberg Skating Palace (R) for figure skating and short track speed skating events, are almost complete ahead of the Feb. 7 opening of the Winter Olympic Games in Sochi, Russia, on Jan. 28, 2014. In the background is the Mountain Cluster area where outdoor events will take place. (Kyodo)

SOCHI, Russia - Workers prepare for the Feb. 7 opening of the Winter Games at the Sochi Olympic Park in Sochi, Russia, on Jan. 28, 2014. The Bolshoy Ice Dome, the venue for ice hockey games, can be seen in the background. (Kyodo)

SOCHI, Russia - Workers take a break near the Fisht Olympic Stadium (back), the venue of the opening and closing ceremonies for the 2014 Winter Games in Sochi, Russia, on Jan. 28, 2014. The event will be held from Feb. 7 to 23. (Kyodo)

The Caucasus Mountains, site of the 2014 Winter Olympic outdoor snow sport and sliding track events, stand in the background as Olympic workers cross the street in the Coastal Cluster's Olympic Park, home to the games' indoor arenas, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/David Goldman)

The Caucasus Mountains, site of the 2014 Winter Olympic outdoor snow sport and sliding track events, rise in the background as a palm tree stands in the Coastal Cluster's Olympic Park, home to the games' indoor arenas, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/David Goldman)

A volunteer carrying a snowboard walks across an overpass, 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 man jogs along the street, 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)

Workers repair a building, 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 group of people walk past the welcome signs, 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)

Volunteers walk through a spectator common area near the Olympic flame in the Olympic Park before the start of the 2014 Winter Olympics, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

Two year old Lilya poses for a photo next to a figure of the Olympic mascot Zaika at the ski resort Rosa Khutor 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/Gero Breloer)

A woman takes a snapshot of the Olympic mascots at the ski resort Rosa Khutor 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/Gero Breloer)

SOCHI, Russia - A test ignition of the Olympic flame is carried out at the Olympic Park in Sochi, Russia, on Jan. 27, 2014, ahead of the Winter Games the following month. (Kyodo)

SOCHI, Russia - Visitors pose for photos before a countdown clock in Sochi, Russia, on Jan. 28, 2014. The clock shows 10 days left until the opening of the Winter Olympics. (Kyodo)

SOCHI, Russia - Two children play beneath a countdown clock in Sochi, Russia, on Jan. 28, 2014. The clock shows 10 days left until the opening of the Winter Olympics. (Kyodo)

SOCHI, Russia - Visitors pose for photos before a countdown clock in Sochi, Russia, on Jan. 28, 2014. The clock shows 10 days left until the opening of the Winter Olympics. (Kyodo)

SOCHI, Russia - Pedestrians pass by a countdown clock in Sochi, Russia, on Jan. 28, 2014. The clock shows 10 days left until the opening of the Winter Olympics. (Kyodo)

SOCHI, Russia - The Olympic flame cauldron is lit during a test ignition at the Olympic Park in Sochi, Russia, on Jan. 27, 2014, before the Winter Games open the following month. At the back is the Bolshoy Ice Dome, a venue for ice hockey events. (Kyodo)

SOCHI, Russia - The Olympic flame cauldron is lit during a test ignition at the Olympic Park in Sochi, Russia, on Jan. 27, 2014, before the Winter Games open the following month. At the back is the Bolshoy Ice Dome, a venue for ice hockey events. (Kyodo)

A radar unit is located near the Olympic Park as security measures are put into place ahead of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

In a photo taken through a fence, security personnel patrol a boardwalk outside the Olympic Park as security measures are put into place ahead of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

In a photo taken through a fence, security personnel patrol a boardwalk outside the Olympic Park as security measures are put into place ahead of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

A member of the Swiss delegation speaks to volunteers while hanging a banner outside the apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

The Olympic flame is lit during a test next to the Bolshoy Ice Dome before the start of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin)

Workers clean the road near the apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

A member of the Swiss delegation hangs a banner outside the apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

A member of the Swiss delegation speaks to volunteers while hanging a banner outside the apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

A bus drives past apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. In the background is the Bolshoy Ice Dome where the ice hockey competition will take place. (AP Photo/Pavel Govolkin, Pool)

A bus drives past apartments in the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

A woman waits for a bus next to a billboard advertising the upcoming 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/David Goldman)

Roses sit on a table at a flower shop in a marketplace as a woman prepares a bouquet, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A diver carries his flippers as he boards a Russian military vessel, at left, docked in the seaport, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A police officer checks the identification of a passerby in the central train station, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Volunteers wait to enter through a security check point at the Coastal Village where athletes will reside during the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Govolkin, Pool)

Leonid Gladko, 4, climbs up to get a better view of a stuffed animal in a store window, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Beach goers walk out on a boardwalk pier along the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A woman sweeps the boardwalk in front of souvenir shops along the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Fisherman huddle together while casting off a boardwalk in a seaport along the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Two women stroll along a promenade in the rain, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Olympic souvenir plates are displayed in a shop as pedestrians are reflected in the window while strolling along a boardwalk on the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A gun sits atop a Russian military vessel docked in the seaport, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

People line up at a ticket window in the central train station, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A sailor mops the deck of a Russian military vessel docked in the seaport, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A fisherman at right prepares to cast his line off a boardwalk in a seaport along the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A police officer patrols at a bus stop, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A woman stands at the end of a boardwalk pier along the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

Souvenirs are displayed in a storefront as beach goers are reflected in the shop window strolling along a boardwalk on the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

An advertisement is displayed in an office window as passengers board a city bus, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

A water slide park sits under construction along a boardwalk on the Black Sea, Wednesday, Jan. 29, 2014, in Sochi, Russia, home of the upcoming 2014 Winter Olympics. (AP Photo/David Goldman)

The main fountain gushes out during a test next to the Olympic flame before the start of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia, Wednesday, Jan. 29, 2014. (AP Photo/Pavel Golovkin)

The main fountain gushes out during a test next to the Olympic flame before the start of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)

People watch as the main fountain gushes out during a test next to the Olympic flame before the start of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia, Wednesday, Jan. 29, 2014. (AP Photo/Pavel Golovkin)

The Olympic torch, left, is tested before the start of the 2014 Winter Olympics in the Olympic Park, Wednesday, Jan. 29, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

The Olympic torch, left, is tested before the start of the 2014 Winter Olympics in the Olympic Park, Wednesday, Jan. 29, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

SOCHI, Russia - Vehicles pass by an Olympic emblem painted on an Olympic lane in front of Sochi Station in southern Russia on Jan. 23, 2014. The operation of the Olympic lanes reserved for vehicles related to the Winter Games begins the same day. (Kyodo)

the 2014 Winter Olympics, Tuesday, Jan. 28, 2014, in Sochi, Russia. (AP Photo/David J. Phillip)

A father watches his child as she plays on the beach near the Black Sea,Tuesday, Jan. 28, 2014, in Adler, Russia. Adler is located two and a half miles from the Olympic Park where the 2014 Winter Olympics will be held. (AP Photo/David J. Phillip)

Residents walk on the beach near the Black Sea,Tuesday, Jan. 28, 2014, in Adler, Russia. Adler is located two and a half miles from the Olympic Park where the 2014 Winter Olympics will be held. (AP Photo/David J. Phillip)

A man fishes off a pier on the Black Sea, Tuesday, Jan. 28, 2014, in Adler, Russia. Adler is located two and a half miles from the Olympic Park where the 2014 Winter Olympics will be held. (AP Photo/David J. Phillip)

A man swims in the Black Sea,Tuesday, Jan. 28, 2014, in Adler, Russia. Adler is located two and a half miles from the Olympic Park where the 2014 Winter Olympics will be held. (AP Photo/David J. Phillip)

A couple embrace on the beach near the Black Sea,Tuesday, Jan. 28, 2014, in Adler, Russia. Adler is located two and a half miles from the Olympic Park where the 2014 Winter Olympics will be held. (AP Photo/David J. Phillip)

Cabling is coiled along a railing before being installed at the Laura Biathlon Center in preparation for the 2014 Winter Olympics in the Olympic Park, Monday, Jan. 27, 2014, in Krasnaya Polyana, Russia. (AP Photo/Tony Hicks)

A neglected fountain is seen on the premises of the Soviet-era Ordzhonikidze sanatorium, currently closed for reconstruction in the Black Sea resort of Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

A neglected fountain is seen on the premises of the Soviet-era Ordzhonikidze sanatorium, currently closed for reconstruction in the Black Sea resort of Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

A view of the Rosa Khutor Extreme Park in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

A view of the Rosa Khutor, in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

Olympic workers mount a suppressor grid at the mountainside in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the upcoming Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

A volunteer, left, slides by a policeman on the Olympic slope in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

Olympic workers mount a suppressor grid at the mountainside in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the upcoming Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

Russian Ministry of Emergency Situations guards slide on the Olympic mountainside in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

A view of the Laura Cross-country Ski & Biathlon Center in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

Ski lifts move at the Olympic area in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

A view of the Rosa Khutor in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

A volunteer moves up on a ski lift in the Laura Cross-country Ski & Biathlon Center in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

Volunteers move up on a ski lift at the Olympic area in Sochi, Russia, Tuesday, Jan. 28, 2014. The Black Sea resort of Sochi will host the Winter Games Feb. 7-23. (AP Photo/Pavel Golovkin)

SOCHI, Russia - The Sochi Olympic Games' official store at the Rosa Khutor ski resort is seen on Jan. 21, 2014. (Kyodo)

SOCHI, Russia - A woman poses with a large Olympic emblem at the Sochi Olympic Park on Jan. 22, 2014. (Kyodo)

SOCHI, Russia - The lit-up Sochi Olympic Park in southern Russia is seen on Jan. 21, 2014, before the start of the Sochi Olympic Games from Feb. 7 to 23. (Kyodo)

In this photo taken Sunday, Jan. 26, 2014, people walk in the Roza Khutor, a mountain part of Olympic infrastructure of the Russian Black Sea resort of Sochi, which will host 2014 Winter Olympic Games in February. Russia's top opposition leader and anti-corruption campaigner has launched a website to publish a wide range of data pointing to corruption in Sochi. Russia has spent about $51 billion to deliver the Winter Olympics in Sochi, which run Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken Sunday, Jan. 26, 2014, a man fixes a pavement in Roza Khutor, a mountain part of Olympic infrastructure of the Russian Black Sea resort of Sochi, which will host 2014 Winter Olympic Games in February. Russia's top opposition leader and anti-corruption campaigner has launched a website to publish a wide range of data pointing to corruption in Sochi. Russia has spent about $51 billion to deliver the Winter Olympics in Sochi, which run Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken Sunday, Jan. 26, 2014, a man uses a snow plough to clean the car park in Roza Khutor, a mountain part of Olympic infrastructure of the Russian Black Sea resort of Sochi, which will host 2014 Winter Olympic Games in February. Russia's top opposition leader and anti-corruption campaigner has launched a website to publish a wide range of data pointing to corruption in Sochi. Russia has spent about $51 billion to deliver the Winter Olympics in Sochi, which run Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken Sunday, Jan. 26, 2014, a man uses a snow plough to clean the snow in Roza Khutor, a mountain part of Olympic infrastructure of the Russian Black Sea resort of Sochi, which will host 2014 Winter Olympic Games in February. Russia's top opposition leader and anti-corruption campaigner has launched a website to publish a wide range of data pointing to corruption in Sochi. Russia has spent about $51 billion to deliver the Winter Olympics in Sochi, which run Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken Sunday, Jan. 26, 2014, a man holds his skis in Roza Khutor, a mountain part of Olympic infrastructure of the Russian Black Sea resort of Sochi, which will host 2014 Winter Olympic Games in February. Russia's top opposition leader and anti-corruption campaigner has launched a website to publish a wide range of data pointing to corruption in Sochi. Russia has spent about $51 billion to deliver the Winter Olympics in Sochi, which run Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

A volunteer walks along a concourse at the Bolshoy Ice Dome, where ice hockey will be played, at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

A zamboni crosses the ice at Iceberg Skating Palace, where figure skating and short track speed skating will be held, at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

A worker puts up a banner at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. (AP Photo/David J. Phillip)

The Olympic cauldron is silhouetted against the sky at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

A zamboni crosses the ice at Iceberg Skating Palace, where figure skating and short track speed skating will be held, at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

A worker leaves after checking ice conditions at the Iceberg Skating Palace, where the figure skating and short track speed skiing will take place, at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

Bolshoy Ice Dome, where ice hockey will be played, is shown at the 2014 Winter Olympics Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

The Olympic cauldron for the 2014 Winter Olympics is shown Saturday, Jan. 25, 2014, in Sochi, Russia. The Olympics begin Feb. 7th. (AP Photo/David J. Phillip)

Elizaveta Kulichkova of Russia (R) poses with the trophy as she celebrates after victory in her girls singles final match against Jana Fett of Croatia (L) on day thirteen of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE AFP PHOTO / MAL FAIRCLOUGH

In this photo taken Thursday, Jan. 23, 2014, a man with an umbrella stands on the pier in central Sochi, Russia. The Russian Black Sea resort of Sochi is hosting the Winter Games on Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken Thursday, Jan. 23, 2014 a man with an umbrella walks on the pier in central Sochi, Russia. The Russian Black Sea resort of Sochi is hosting the Winter Games on Feb. 7-23. (AP Photo/Nataliya Vasilyeva)

In this photo taken on Thursday, Jan. 23, 2014 a statue of Lenin stands in a central park in Sochi, Russia, surrounded by temporary fencing where workers are putting up one of the Olympic "live sites". The Russian Black Sea resort of Sochi is hosting the Winter Games on Feb. 7-23. (AP Photo/Nataliya Vasilyeva)