A Secret Service Agent stands behind a video screen before former Secretary of State Hillary Clinton speaks at a rally in Portsmouth, New Hampshire on Saturday, February 6, 2016. (Photo by Melina Mara/The Washington Post)





An Emirati man plays at the “Caring Machines” section of the Museum of the future during the opening day of the World Government Summit in Dubai, United Arab Emirates, Monday, February 8, 2016. Those gathered for the World Government Summit in Dubai offered no immediate solutions to the crises gripping the region, like low global oil prices, global warming and the rise of violent extremism. But all acknowledged that keeping government responsive to its citizens remains crucial. (Photo by Kamran Jebreili/AP Photo)





In this Monday, September 14, 2015 file photo, an Emirati soldier stands guard out the rear gate of a Chinook military helicopter, escorted by a Blackhawk helicopter, traveling from Saudi Arabia to Yemen. Saudi Arabia's offer to put boots on the ground to fight Islamic State in Syria is as much about the kingdom's growing determination to flex its military might as it is about answering U.S. calls for more help from Mideast allies. (Photo by Adam Schreck/AP Photo)





In this Sunday, February 7, 2016 file photo, Beyonce performs during halftime of the NFL Super Bowl 50 football game in Santa Clara, Calif. Beyonce is working overtime this weekend: After releasing a new song Saturday and performing at the Super Bowl on Sunday, she's announced a new stadium tour. The Grammy-winning singer announced her 2016 Formation World Tour in a commercial after she performed at the halftime show with Bruno Mars and Coldplay. (Photo by Matt Slocum/AP Photo)





Masked revelers parade through the streets during the start of the carnival in Lucerne, Switzerland, Monday, February 8, 2016. (Photo by Alexandra Wey/Keystone via AP Photo)





Masked revelers parade through the streets during the start of the carnival in Lucerne, Switzerland, Monday, February 8, 2016. (Photo by Alexandra Wey/Keystone via AP Photo)





Revellers participate during an annual block party in Sao Luiz do Paraitinga, Brazil, February 7, 2016. (Photo by Roosevelt Cassio/Reuters)





Revellers participate during an annual block party in Sao Luiz do Paraitinga, Brazil, February 7, 2016. (Photo by Roosevelt Cassio/Reuters)





Revellers get ready for the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





Workers arrange statues on a float before the first night of the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





Revellers walk together before the first night of the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





A reveller gets ready before the first night of the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





Revellers get ready before the first night of the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





A reveller gets ready before the first night of the Carnival parade of samba schools in Rio de Janeiro's Sambadrome February 7, 2016. (Photo by Pilar Olivares/Reuters)





Activists from AnimaNaturalis take part in a demonstration against bullfighting in front of the Monument to the Revolution in Mexico City February 7, 2016. (Photo by Henry Romero/Reuters)





Revellers attend a carnival party in a neighborhood in Olinda, Brazil February 7, 2016. (Photo by Ueslei Marcelino/Reuters)





Revellers kiss during a carnival party in a neighborhood in Olinda, Brazil February 7, 2016. (Photo by Ueslei Marcelino/Reuters)





Revellers attend a carnival party in a neighborhood in Olinda, Brazil February 7, 2016. (Photo by Ueslei Marcelino/Reuters)





Revellers take the metro to make their way to the Sambadrome to watch the carnival in Rio de Janeiro, February 7, 2016. (Photo by Lunae Parracho/Reuters)





A girl dressed in a Hanbok, a Korean traditional costume, holds her mother's hand in front of a barbed-wire fence, after a memorial service for North Korean family members, near the demilitarized zone separating the two Koreas, in Paju, February 8, 2016, on the occasion of Seolnal, the Korean Lunar New Year's day. Millions of South Koreans travelled to their hometowns during the three-day holiday. Seolnal is one of the traditional holidays when most Koreans visit their hometowns to be united with their families and hold memorial services for their deceased ancestors. (Photo by Kim Hong-Ji/Reuters)





Revellers of the Estacio de Sa samba school leave the Sambadrome after parading in the carnival in Rio de Janeiro, February 7, 2016. (Photo by Ricardo Moraes/Reuters)





Revellers leave the Sambadrome after parading in the carnival in Rio de Janeiro, February 8, 2016. (Photo by Ricardo Moraes/Reuters)





A temple staff and security guards wait before Yonghegong Lama Temple opens its doors for people to burn incense and pray for good fortune on the first day of the Lunar New Year of the Monkey in Beijing, China, February 8, 2016. (Photo by Damir Sagolj/Reuters)





An Afghan National Army officer escorts a slightly injured boy from the site of a suicide attack on the outskirts of Mazar-i-Sharif, Afghanistan February 8, 2016. (Photo by Anil Usyan/Reuters)





International Space Station (ISS) expedition 46/47 crew member, Russian cosmonaut Yuri Malenchenko performs a spacewalk outside the ISS, in this Roscosmos image released on February 7, 2016. (Photo by Reuters/Roscosmos)





Demonstrators carry chairs that were stolen from bank offices in France to protest against a banking system and tax fraud, as they gather on a bridge near the courts in Paris, France, February 8, 2016. Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to have a Swiss bank account, stands trial on Monday for tax fraud. (Photo by Charles Platiau/Reuters)





An aspiring model waits for an audition for a transgender/transsexual modelling agency set to open in New Delhi, India, February 7, 2016. (Photo by Adnan Abidi/Reuters)





An aspiring model takes questions from judges during auditions for a transgender/transsexual modelling agency set to open in New Delhi, India, February 7, 2016. (Photo by Adnan Abidi/Reuters)





An aspiring model takes a selfie before auditioning for a transgender/transsexual modelling agency set to open in New Delhi, India, February 7, 2016. (Photo by Adnan Abidi/Reuters)





Carnival revellers battle the wind and rain after the “Rosenmontag” (Rose Monday) parade, the highlight of the annual carnival season, was called-off in Mainz, Germany, February 8, 2016. Many traditional Rose Monday carnival parades were cancelled in the Rhineland due to severe weather warnings. Low-pressure system Ruzica, bringing heavy thunderstorms and high winds is predicted for Monday, according to the weather department. (Photo by Kai Pfaffenbach/Reuters)





A carnival float featuring a clown facing an Islamic fighter stands on display near city hall on February 8, 2016 in Duesseldorf, Germany. Today's Rose Monday parade, the highlight of western Germany's carnival season, has been cancelled due to weather predictions that include high winds. (Photo by Sascha Steinbach/Getty Images)





A carnival reveler stands outside a store as the traditional Rose Monday parade was canceled due to forecasted strong winds in Mainz, Germany, Monday, February 8, 2016. Duesseldorf, Mainz and Essen have joined several other German cities in calling off their main Carnival processions because of a forecast storm. Cologne plans to go ahead with its parade but has banned horses, large puppets and flags from the event for safety reasons. (Photo by Michael Probst/AP Photo)





Police get flowers by revelers while they secure the traditional carnival parade in Cologne, western Germany, Monday, February 8, 2016. Many carnival parades in Germany were cancelled because of stormy weather. The foolish street spectacle in Cologne, normally watched by hundreds of thousands of people, is the highlight in Germany's carnival season on Rose Monday. (Photo by Martin Meissner/AP Photo)





A carnival float with a papier-mache caricature is displayed for the public at one location after the “Rosenmontag” (Rose Monday) parade, the highlight of the annual carnival season, was called-off in Duesseldorf, Germany February 8, Germany 2015. Many traditional Rose Monday carnival parades were cancellend in the Rhineland due to severe weather warnings. Low-pressure system, Ruzica, bringing heavy thunderstorms and high winds is predicted for Monday, according to the weather department. (Photo by Ralph Orlowski/Reuters)





German police officers walk during the "Rosenmontag" (Rose Monday) parade, the highlight of the annual carnival season in Cologne, Germany February 8, 2016. Cologne city authorities decided to go ahead with Monday's parade, despite many other traditional Rose Monday carnival parades being cancelled in the Rhineland due to severe weather warnings. (Photo by Wolfgang Rattay/Reuters)





Waves hit a harbour wall on February 8, 2016 in Newhaven, East Sussex, UK on February 8, 2016. Storm Imogen is the ninth named storm to hit the UK this season. This year's storms are being named in an effort by the Met Office and Met Eireann to increase public awareness and safety. They were named by public ballot and there are no names for the letters Q, U, X, Y and Z. (Photo by Carl Court/Getty Images)





A woman' s hair is blown across her face as she crosses the Millennium Bridge during strong winds in London, Britain February 8, 2016. (Photo by Stefan Wermuth/Reuters)





A man giving out leaflets to tourists is blown by the wind in Westminster in London, Monday, February 8, 2016. Winds of nearly 100mph battered Britain after another storm slammed into the south coast bringing fierce gusts and torrential downpours. (Photo by Kirsty Wigglesworth/AP Photo)





A man leans into the wind on the beach at Newhaven, southern England, February 8, 2015. Winter storm Imogen has brought rough seas and gale force winds to many coastal areas of Britain. (Photo by Peter Nicholls/Reuters)





Greek Coast Guard officers move a girl from a dinghy carrying refugees and migrants aboard the Ayios Efstratios Coast Guard vessel, during a rescue operation in the open sea between the Turkish coast and the Greek island of Lesbos, February 8, 2016. (Photo by Giorgos Moutafis/Reuters)





Odka performs in during a media preview of Zippos Cirque Berserk at the Peacock Theatre in London, Britain February 8, 2016. (Photo by Stefan Wermuth/Reuters)





Contortionist Odka prepares to fire an arrow from a bow as she performs during a photo call for Zippos Cirque Berserk opening at the Peacock Theatre, central London, with an international cast of over 30 acrobats, jugglers, aerialists, drummers, dancers, clowns and stunt-men on February 8, 2016. (Photo by Nick Ansell/PA Wire via ZUMA Press)





Odka performs in during a media preview of Zippos Cirque Berserk at the Peacock Theatre in London, Britain February 8, 2016. (Photo by Stefan Wermuth/Reuters)





A person dressed as Ziripot, a traditional figure stuffed with straw, walks in front of the figure of Miel Otxin (seen behind with outstretched arms) alongside the Txatxos during carnival celebrations in the Navarran village of Lantz, February 8, 2016. The Ziripot's role as the strongest person in the village is to defeat the evil bandit Miel Otxin, while the Txatxos represent the population of Lantz. (Photo by Vincent West/Reuters)





A girl mourns the loss of her relatives after airstrikes by pro-Syrian government forces in the rebel held al-Saleheen neighborhood of Aleppo, Syria February 8, 2016. (Photo by Abdalrhman Ismail/Reuters)





Saudi man performs a traditional dance during Janadriyah Culture Festival on the outskirts of Riyadh, Saudi Arabia February 8, 2016. (Photo by Faisal Al Nasser/Reuters)





A camel grumbles during Janadriyah Culture Festival on the outskirts of Riyadh, Saudi Arabia February 8, 2016. (Photo by Faisal Al Nasser/Reuters)





A Saudi man fires a weapon as he performs a traditional dance during Janadriyah Culture Festival on the outskirts of Riyadh, Saudi Arabia February 8, 2016. (Photo by Faisal Al Nasser/Reuters)





Saudi women stand in front of handmade ornamental products during Janadriyah Culture Festival on the outskirts of Riyadh, Saudi Arabia February 8, 2016. (Photo by Faisal Al Nasser/Reuters)





Revellers participate in a flour fight during the “O Entroido” festival in Laza village Spain February 8, 2016. The carnival lasts for a week and is considered a major social and cultural event in Laza. (Photo by Miguel Vidal/Reuters)





Revellers participate in a flour fight during the “O Entroido” festival in Laza village, Spain February 8, 2016. (Photo by Miguel Vidal/Reuters)





Revellers participate in a flour fight during the “O Entroido” festival in Laza village, Spain February 8, 2016. (Photo by Miguel Vidal/Reuters)





13-year-old Prince Mpofu packs last year's harvest from the irrigated gardens for storage on February 7, 2015 in the village of Nsezi in Matabeleland, southwestern Zimbabwe. Zimbabwe's President Robert Mugabe on February 5, 2016 declared a “state of disaster” in many rural areas hit by a severe drought, with more than a quarter of the population facing food shortages. (Photo by Ziniyange Auntony/AFP Photo)





A so-called “Federhannes” carnival character jumps through the streets of Rottweil, southern Germany, during the “Narrensprung” (Jump of the Fools) carnival parade on Rose Monday (Rosenmontag), February 8, 2016. (Photo by Patrick Seeger/AFP Photo/DPA)





North Koreans gather at the Kim Il Sung Square to celebrate a satellite launch Monday, February 8, 2016, in Pyongyang, North Korea. People in Pyongyang danced and watched fireworks the day after a rocket launch that has been strongly condemned by many countries around the world. (Photo by Jon Chol Jin/AP Photo)





This image provided by Mountain Dew shows a “Puppymonkeybaby” in a scene from the company's Kickstart spot for Super Bowl 50. (Photo by Mountain Dew via AP Photo)





Revelers pose during Carnival celebrations on February 8, 2016 in Rio de Janeiro, Brazil. Festivities have continued throughout Brazil for Carnival in spite of the threat of the Zika virus. (Photo by Mario Tama/Getty Images)





A Syrian man gets a tattoo bearing the names of his killed relatives, on February 5, 2016, in the capital Damascus. (Photo by Joseph Eid/AFP Photo)





A ranger shows rhino horns to be weighed and stored at John Hume's Rhino Ranch in Klerksdorp, in the North Western Province of South Africa, on February 3, 2016.
Millionaire, John Hume is a private rhino owner/breeder in South Africa, who strongly advocates for legalising trade. His private game ranch, started in 1992, has approximately 1000 rhinos, all of whom have been dehorned. South Africa has by far the largest population of rhinos in the world and is an incredibly important country for rhino conservation. However, rhino poaching has reached a crisis point, and if the killing continues at this rate, we could see rhino deaths overtaking births in 2016-2018, meaning rhinos could go extinct in the very near future. Figures compiled by the South African Department of Environmental affairs show the dramatic escalation in poaching over recent years. (Photo by Mujahid Safodien/AFP Photo)





Police officers detain an activist who was taking part in a rally of foreign currency mortgage holders, near the Central Bank headquarters in central Moscow, Russia, February 8, 2016. (Photo by Sergei Karpukhin/Reuters)





Chinese worshippers light incense and pray at the Yongchegong Lama Temple on February 8, 2016 in Beijing, China. The Chinese Lunar New Year also known as the Spring Festival, which is based on the Lunisolar Chinese calendar, is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the fifteenth day. (Photo by Kevin Frayer/Getty Images)





A reveler wearing sheepfur costume is seen in front of a bonfire on which they burn a coffin symbolizing winter during the closing ceremony of the traditional carnival parade in Mohacs, 189 kms south of Budapest, Hungary, 07 February 2016. The carnival parade of people, the so-called busos, dressed in such costumes and frightening wooden masks, using various noisy wooden rattlers is traditionally held on the seventh weekend before Easter to drive away winter, and is a revival of a legend, which says that ethnic Croats ambushed the Osmanli Turkish troops, who escaped in panic seeing the terrifying figures during the Turkish occupation of Hungary. (Photo by Tamas Soki/EPA)





An Indonesian ethnic Chinese worker takes a nap beside candles during the Chinese New Year celebrations at a temple in Bogor, Indonesia, 08 February 2016. China's Lunar New Year begins on 08 February 2016. (Photo by Adi Weda/EPA)





A recovered wedding portrait is propped up at the search and rescue staging area of a collapsed building complex in Tainan, Taiwan, Monday, February 8, 2016. More than 100 people are believed to still be under the debris in a powerful quake that struck on Saturday, Feb. 6, during the most important family holiday in the Chinese calendar — the Lunar New Year. (Photo by AP Photo)





Cheerleaders for the Carolina Panthers perform in the first half against the Denver Broncos during Super Bowl 50 at Levi's Stadium on February 7, 2016 in Santa Clara, California. (Photo by Maddie Meyer/Getty Images)





Multiple vehicles are submerged after falling into the ice on Geneva Lake in Lake Geneva, Wis., on Satrurday, February 6, 2016. The cars were parked on the ice of the lake when they began breaking through Saturday. Officers arrived and found 15 vehicles were partially submerged in the water. No one was hurt. (Photo by Daniel Gaitan/The Kenosha News via AP Photo)





Performers participate at the 2016 Cathay Pacific International Chinese New Year Night Parade on February 8, 2016 in Hong Kong. The Chinese Lunar New Year also known as the Spring Festival, which is based on the Lunisolar Chinese calendar, is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the fifteenth day. (Photo by Anthony Kwan/Getty Images)





A member of the Grande Rio samba school performs during the first day of the Special Group Samba Schools parade of Carnival at the Sambadrome in Rio de Janeiro, Brazil, 07 February 2016. (Photo by Antonio Lacerda/EPA)