US President Barack Obama greets service members after speaking on counterterrorism at MacDill Air Force Base in Tampa, Florida on December 6, 2016. (Photo by Mandel Ngan/AFP Photo)





Pakistani investigators examine the wreckage of a passenger plane crashed in the village of Gug, Pakistan Thursday, December 8, 2016. A Pakistani aviation spokesman says authorities have opened a probe into the plane crash in the country's northwest the previous day. (Photo by B.K. Bangash/AP Photo)





Lawmakers and members of opposition parties hold cards during a rally demanding the impeachment of South Korean President Park Geun-hye at the National Assembly in Seoul, South Korea, Wednesday, December 7, 2016. Park, who faces impeachment this week, rose to power with the support of conservatives enamored of the economic growth ushered in by her late dictator father decades ago. The sign read “President Park Geun-hye” and “Impeachment!”. (Photo by Ahn Young-joon/AP Photo)





A protester shouts slogans in front of a caricature of South Korea's President Park Geun-Hye during a rally urging the impeachment of the president in Seoul on December 7, 2016. South Korea's scandal-hit Park said on December 6 she would accept the result of a looming and possibly lengthy impeachment process, but defied pressure to resign immediately. (Photo by Jung Yeon-Je/AFP Photo)





Fireworks explode next to riot police during clashes following an anniversary rally marking the 2008 police shooting of 15-year-old student, Alexandros Grigoropoulos, in Athens, Greece, December 6, 2016. (Photo by Alkis Konstantinidis/Reuters)





A Native American dancer walks past activists and veterans who are sheltering at the Prairie Knights Casino because of a blizzard hitting the Standing Rock Indian Reservation, near Fort Yates, North Dakota, U.S., December 6, 2016. (Photo by Lucas Jackson/Reuters)





Members of Japan's Self-Defence Force's honour guard prepare for a ceremony for U.S. Defense Secretary Ash Carter at the Defense Ministry in Tokyo, Japan, December 7, 2016. (Photo by Toru Hanai/Reuters)





U.S. Defense Secretary Ash Carter and Japan's Defense Minister Tomomi Inada (L) shake hands before their meeting at the Defense Ministry in Tokyo, Japan, December 7, 2016. (Photo by Kazuhiro Nogi/Reuters)





A passerby reads an introduction on “Stephen”, one of the two lions in rainbow colors to show support for the LGBT (lesbian, gay, bisexual and transgender) community, being newly displayed at HSBC's main branch in Hong Kong, China December 7, 2016. (Photo by Bobby Yip/Reuters)





A young Afghan cyclist performs with a bicycle during an exercise on the outskirts of Kabul, Afghanistan November 20, 2016. (Photo by Omar Sobhani/Reuters)





A young Afghan cyclist falls down from his bicycle during an exercise on the outskirts of Kabul, Afghanistan November 20, 2016. (Photo by Omar Sobhani/Reuters)





A young Afghan cyclist performs with a bicycle during an exercise on the outskirts of Kabul, Afghanistan November 20, 2016. (Photo by Omar Sobhani/Reuters)





Solarstratos, a solar-powered two-seater aircraft with a mission to fly some 24,000m (78,000 feet) above earth set to take place in 2018, is pictured during the roll out presentation in Payerne, Switzerland December 7, 2016. (Photo by Denis Balibouse/Reuters)





Pilot Raphael Domjan of Solarstratos, a solar-powered two-seater aircraft with a mission to fly some 24,000m (78,000 feet) above earth set to take place in 2018 poses during the roll out presentation in Payerne, Switzerland December 7, 2016. (Photo by Denis Balibouse/Reuters)





Solarstratos, a solar-powered two-seater aircraft with a mission to fly some 24,000m (78,000 feet) above earth set to take place in 2018, is pictured during the roll out presentation in Payerne, Switzerland December 7, 2016. (Photo by Denis Balibouse/Reuters)





A soldier in a sniper camuoflage holds a weapon before the start of a parade for the change of command for the new Armed Forces chief at a military camp in Quezon City, Metro Manila, Philippines December 7, 2016. (Photo by Erik De Castro/Reuters)





Soldiers parade for the change of command for the new Armed Forces chief at a military camp in Quezon City, Metro Manila, Philippines December 7, 2016. (Photo by Erik De Castro/Reuters)





New elected Swiss President for 2017, Swiss Energy Minister Doris Leuthard, poses for pictures during the winter parliament session in Bern, Switzerland December 7, 2016. (Photo by Ruben Sprich/Reuters)





Britain's Prince Harry greets a well wisher as he takes part in a charity trading day at ICAP in support of his charity Sentebale, in London, December 7, 2016. (Photo by Geoff Pugh/Reuters)





Britain's Prince Harry, centre, talks on the phone, during an ICAP Charity Trading Day in support of Sentebale – a charity supporting orphans and vulnerable children, with Amanda Hartnell, left and Dermot Doherty, in London, Wednesday, December 7, 2016. (Photo by Geoff Pugh/Pool Photo via AP Photo)





Britain's Prince Harry takes part in a charity trading day at ICAP with Kate Arnold and Samantha Bennett on the EBS Direct Desk in support of his charity Sentebale, in London, December 7, 2016. (Photo by Geoff Pugh/Reuters)





Brazil's President Michel Temer and his wife Marcela attend a ceremony at Planalto Palace in Brasilia, Brazil December 7, 2016. (Photo by Adriano Machado/Reuters)





A visitor and an employee dressed as Snegurochka (Snow Maiden), the granddaughter of Ded Moroz (Russian equivalent of Santa Claus), pose for a picture inside an upside down house, constructed as an attraction for local residents and tourists and located at the Royev Ruchey Park of Flora and Fauna in the suburbs of Krasnoyarsk, Russia, December 7, 2016. (Photo by Ilya Naymushin/Reuters)





Visitors pose for a picture inside an upside down house, constructed as an attraction for local residents and tourists and located at the Royev Ruchey Park of Flora and Fauna in the suburbs of Krasnoyarsk, Russia, December 7, 2016. (Photo by Ilya Naymushin/Reuters)





Employees dressed as Ded Moroz, the Russian equivalent of Santa Claus, and his granddaughter Snegurochka (Snow Maiden), sit on a sledge harnessed with a reindeer while waiting for visitors outside an upside down house, constructed as an attraction for local residents and tourists and located at the Royev Ruchey Park of Flora and Fauna in the suburbs of Krasnoyarsk, Russia, December 7, 2016. (Photo by Ilya Naymushin/Reuters)





People visit an upside down house, constructed as an attraction for local residents and tourists and located at the Royev Ruchey Park of Flora and Fauna in the suburbs of Krasnoyarsk, Russia, December 7, 2016. (Photo by Ilya Naymushin/Reuters)





Visitors take part in a performance with employees dressed as Ded Moroz, the Russian equivalent of Santa Claus, and his granddaughter Snegurochka (Snow Maiden), inside an upside down house, constructed as an attraction for local residents and tourists and located at the Royev Ruchey Park of Flora and Fauna in the suburbs of Krasnoyarsk, Russia, December 7, 2016. (Photo by Ilya Naymushin/Reuters)





Turkish soldiers in historical Ottoman janissary outfits, march during a ceremony, one of many marking the 743rd anniversary of the death of Mevlana Jalaluddin Rumi, in Konya, Turkey, December 7, 2016. (Photo by Murad Sezer/Reuters)





Soldiers from JWK special forces unit take part in tactics presentation for future territorial defence at military range in Zielonka near Warsaw, Poland December 7, 2016. (Photo by Kacper Pempel/Reuters)





Carrying a sack full of toys, the U.S. First Lady Michelle Obama makes her annual visit to the Toys for Tots event at Joint Base Anacostia–Bolling in Washington, U.S. December 7, 2016. (Photo by Kevin Lamarque/Reuters)





Pearl Harbor survivor Robert Coles salutes active U.S. service members after the ceremonies honoring the 75th anniversary of the attack on Pearl Harbor at Kilo Pier on Joint Base Pearl Harbor – Hickam in Honolulu, Hawaii December 7, 2016. (Photo by Hugh Gentry/Reuters)





Chicago Police officers salute Officer Michael Walters and his explosives detection canine “Bob” as they arrive at the Niles Veterinary Hospital where the dog is to be humanely euthanized after being diagnosed with brain cancer in Niles, Illinois, U.S., December 7, 2016. (Photo by Jim Young/Reuters)





Actors Emma Stone and Ryan Gosling show their hands after placing them in cement during a ceremony in the forecourt of the TCL Chinese theatre in Hollywood, California U.S., December 7, 2016. (Photo by Mario Anzuoni/Reuters)





Fernando Jesus Canchari, dressed as a friar, jumps from a 13-meter high cliff along Herradura Beach in Lima, December 7, 2016. (Photo by Guadalupe Pardo/Reuters)





Fernando Jesus Canchari, dressed as a friar, jumps from a 13-meter high cliff along Herradura Beach in Lima, December 7, 2016. (Photo by Guadalupe Pardo/Reuters)





Fernando Jesus Canchari, dressed as a friar jumps from a 13-meter high cliff along Herradura Beach in Lima, December 7, 2016. (Photo by Guadalupe Pardo/Reuters)





Whirling dervishes perform a traditional “Sema” ritual during a ceremony, one of many marking the 743rd anniversary of the death of Mevlana Jalaluddin Rumi, at Mevlana Cultural Center in Konya, Turkey, December 7, 2016. (Photo by Murad Sezer/Reuters)





A man holds a broom as he shouts during clashes with police outside the state legislature during a protest against austerity measures being discussed in the chamber, in Rio de Janeiro, Brazil, Tuesday, December 6, 2016. Legislators were voting on measures to address the state’s deepening financial crisis, in which thousands of state employees and retirees have not been paid or have been paid months late. (Photo by Silvia Izquierdo/AP Photo)





Chad le Clos of South Africa competes in the men's 200m Butterfly Heats during the 13th FINA Short Course World Swimming Championships at WFCU Centre in Windsor, Ontario, December 6, 2016. (Photo by Patrick B. Kraemer/EPA)





A security officer stand guard as supporters of Nana Akufo-Addo, presidential candidate of the opposition New Patriotic Party, chant slogans during the Presidential and parliamentary election, in Kibi, eastern Ghana, Wednesday, December 7, 2016. Ghanaians began lining up at polling stations before dawn on Wednesday to elect their next president as the West African nation hopes to reaffirm its reputation as a model of democracy on the continent. (Photo by Sunday Alamba/AP Photo)





A woman walks past a snow heap at Red Square, with St. Basil's Cathedral seen in the background, as temperatures dropped to -13 degrees Celsius in Moscow on December 7, 2016. (Photo by Natalia Kolesnikova/AFP Photo)