A police on a motorcycle rides past a pro-democracy protester draped with a British national flag during a march in the streets to demand universal suffrage in Hong Kong February 1, 2015. Several thousand pro-democracy protesters returned to the streets of Hong Kong on Sunday in the first large-scale rally since protests rocked the global financial hub late last year. (Photo by Tyrone Siu/Reuters)

Inter Milan's Dodo (C) fights for the ball with Sassuolo's Domenico Berardi (L) during their Italian Serie A soccer match at the Mapei stadium in Reggio Emilia February 1, 2015. (Photo by Alessandro Garofalo/Reuters)

An anti-government demonstrator dressed as Batman stands in protest against corruption and against the induction of new members of the National Congress in Brasilia. February 1, 2015. Placard reads “Dilma, your time is running out, the Lava-Jato (Jet wash) Wash is coming”. Lava-Jato is the name of an operation of the federal police investigating allegations of corruption in the Brazilian Petroleum company, Petrobras. (Photo by Ueslei Marcelino/Reuters)

Shi'ite fighters, who have joined the Iraqi army to fight against militants of the Islamic State, take part in field training in the desert in Najaf, south of Baghdad, february 1, 2015. (Photo by Alaa Al-Marjani/Reuters)

Shi'ite fighters who have joined the Iraqi army to fight against militants of the Islamic State, take part in field training in the desert in Najaf, south of Baghdad, February 1, 2015. (Photo by Alaa Al-Marjani/Reuters)

Shi'ite fighters, who have joined the Iraqi army to fight against militants of the Islamic State, take part in field training in the desert in Najaf, south of Baghdad, February 1, 2015. (Photo by Alaa Al-Marjani/Reuters)

Two men walk past the Crown Fountain in blizzard conditions in Chicago, Illinois February 1, 2015. (Photo by Jim Young/Reuters)

A MBTA bus sits stuck in a snowbank during a snow storm in Boston, Massachusetts February 2, 2015. Boston, already buried under two feet (60 cm) of snow from a blizzard last week, was predicted to see a foot of snow after a huge winter storm hit the northeastern United States on Monday, the region's second snowy blast in less than a week. (Photo by Dominick Reuter/Reuters)

A woman shields her face from the wind-driven snow while making her through a winter storm in downtown Portland, Maine, Monday, February 2, 2015. (Photo by Robert F. Bukaty/AP Photo)

A woman holds onto her hat against the wind during a snow storm in Boston, Massachusetts February 2, 2015. (Photo by Dominick Reuter/Reuters)

New England Patriots cheerleaders celebrate after their team defeated the Seattle Seahawks in the NFL Super Bowl XLIX football game in Glendale, Arizona February 1, 2015. (Photo by Brian Snyder/Reuters)

Katy Perry performs during the halftime show at the NFL Super Bowl XLIX football game between the Seattle Seahawks and the New England Patriots in Glendale, Arizona, February 1, 2015. (Photo by Lucy Nicholson/Reuters)

Seattle Seahawks fans cheer during the NFL Super Bowl XLIX football game against the New England Patriots in Glendale, Arizona, February 1, 2015. (Photo by Lucy Nicholson/Reuters)

Residents carry a slaughtered pig with a bamboo pole as they walk home on a street, which was shut to traffic due to ice, in Leishan county, Guizhou province January 31, 2015. Blizzards and icy rain that lasted for several days at the end of January have disrupted traffic, collapsed houses and decimated crops in central Chinese provinces, Xinhua News Agency reported. (Photo by Reuters/Stringer)

A Toronto Transit Commission (TTC) Streetcar is stopped in its track while the engineer attempts to clears snow on its path during a blizzard condition in Toronto, Ontario February 1, 2015. Southern Ontario is under Winter Storm with blizzard conditions with temperatures hovering at -14 degrees Celsius (6 degrees Fahrenheit). (Photo by Hyungwon Kang/Reuters)

Women police officers are instructed by a police officer about their parade, before a rehearsal for Sri Lanka's 67th Independence Day celebrations in Colombo February 2, 2015. Sri Lankans will celebrate their Independence Day on February 4. (Photo by Dinuka Liyanawatte/Reuters)

Two army soldiers remove cloth from an elephant after participating in a rehearsal for Sri Lanka's 67th Independence Day celebrations in Colombo February 2, 2015. (Photo by Dinuka Liyanawatte/Reuters)

A girl sleeps on her drum before a rehearsal for Sri Lanka's 67th Independence Day celebrations in Colombo February 2, 2015Dinuka Liyanawatte

Women police officers are instructed by a police officer about their parade before a rehearsal for Sri Lanka's 67th Independence Day celebrations in Colombo February 2, 2015Dinuka Liyanawatte

Two women practice yoga next to trees covered in frost at the Tianmen Mountain resort in Zhangjiajie, Hunan province, January 31, 2015. (Photo by Reuters/China Daily)

A woman (C) types on a mobile phone along a street in Hanoi February 2, 2015. Vietnam is ringing in changes next month to make way for a standardized phone numbering plan, but is struggling to get through to businesses hung up on how much it will cost them. (Photo by Reuters/Kham)

Mexican body modification and tattoo artist Maria Jose Cristerna, also known as “Vampire Woman”, poses for a portrait at Caracas's International Tattoo Festival January 30, 2015. Local and international tattoo celebrities joined a host of aficionados from across Venezuela on Friday at the four-day festival, which aims to spread awareness of tattoo culture in Venezuela and promote tattooing as an art form. (Photo by Jorge Silva/Reuters)

A tattoo artist works on a woman's leg during the “Expo Tatoo Venezuela” in Caracas on January 29, 2015. (Photo by Federico Parra/AFP Photo)

Alex poses for a portrait at Caracas's International Tattoo Festival January 30, 2015. (Photo by Jorge Silva/Reuters)

A man stands with his flock of sheep in floodwaters in the village of Darzez near the city of Fier, Albania February 2, 2015. Soldiers were deployed in Albania on Monday to help rescue villagers and strengthen flood barriers after rivers burst their banks under heavy rain that was forecast to continue through the week. No casualties were reported. (Photo by Arben Celi/Reuters)

Men lead their cattle out of a flooded barn in the village of Darzez near the city of Fier February 2, 2015. (Photo by Arben Celi/Reuters)

Kurdish refugee girls from the Syrian town of Kobani walk at a refugee camp in the Turkish border town of Suruc, Sanliurfa province February 2, 2015. The Syrian Kurdish militia that drove Islamic State militants from Kobani with the help of U.S.-led air strikes said on Monday the radical Islamist group may now open new fronts against it in northeastern Syria. Redur Xelil, spokesman for the Kurdish YPG militia, said Islamic State forces were collapsing around Kobani, a town at the border with Turkey that became a focal point for the U.S.-led military campaign against Islamic State in Syria. (Photo by Umit Bektas/Reuters)

Traditional dancers perform during Navam Perahera, a Buddhist pageant of elephants, dancers and drummers, in Colombo February 2, 2015. Over 50 elephants participated in a street parade for Gangaramaya Temple's annual Perahera festival, along with a nightly procession of dancers, fire twirlers and musicians. (Photo by Dinuka Liyanawatte/Reuters)

Traditional protocol officials await the arrival of President Goodluck Jonathan for a courtesy visit, at the Emir of Gombe Abubakar Shehu-Abubakar's Palace in Gombe, February 2, 2015. Nigeria is due to hold a presidential election on February 14, pitting the ruling People's Democratic Party's (PDP) Jonathan against former military ruler Muhammadu Buhari for the opposition All Progressives Congress (APC). Both candidates are wrapping up their campaigns for what is expected to be the most closely fought election since the end of military rule in 1999. (Photo by Afolabi Sotunde/Reuters)

Bolivia's President Evo Morales dances during a ceremony near Oruro, February 2, 2015. President Morales inaugurated on Monday a highway that links La Paz to Oruro, a distance of approximately 210 km. (Photo by Reuters/ABI/Bolivian Presidency)

Natalia Ciuffardi Castro, 28, kisses a friend as she is handcuffed and escorted after testifying in the Supreme Court in Santiago February 2, 2015. Ciuffardi, who had a relationship with the former director of the Honduran Institute of Social Security (IHSS) Mario Zelaya who is accused of fraud, bribery, abuse of public funds and money laundering, is linked to the wrongful removal of social security funds. (Photo by Rodrigo Garrido/Reuters)

People attend the opening of Colombian painter and sculptor Fernando Botero's exhibition “The Circus” at the Museum of Antioquia in Medellin, Colombia February 2, 2015. The exhibition will open to the public from February 3 to May 17. (Photo by Fredy Builes/Reuters)

Two soldiers of the People's Liberation Army (PLA) Marine Corps take part in a military drill on snow-covered field at a military base in Taonan, Jilin province January 27, 2015. Over 1,000 soldiers and other 200 military vehicles from Chinese Marine Corps participated in this winter drill between January 8 to February 6, China Daily reported. (Photo by Reuters/China Daily)

A tank of the People's Liberation Army (PLA) Marine Corps fires during a military drill at a military base in Taonan, Jilin province January 25, 2015. (Photo by Reuters/China Daily)