Masked youths face off with French police and gendarmes during a demonstration in Paris as part of nationwide protests against plans to reform French labour laws, France, June 14, 2016. (Photo by Willi Effenberger/Pacific Press/SIPA Press)

A human rainbow is created at a BASEOrlando coordinated event, “Orlando Strong Body Paint”, on Friday, June 17, 2016 in Orlando, Fl. The group created the rainbow, composed of volunteers numbering the same as that of the victims of the Pulse shooting, as a visual reminder of the amount of lives lost. (Photos by Amanda Voisard/The Washington Post)

An Indonesian boy waits as he prepares to catch offerings released by Hindu devotees of the Tengger tribe during the Yadnya Kasada festival, on the crater of Mount Bromo in Probolinggo on July 21, 2016. During the annual Yadnya Kasada festival the Tenggerese climb Mount Bromo, an active volcano, and seek the blessing from the main deity Hyang Widi Wasa by presenting offerings of rice, fruit, livestock and other local produce. (Photo by Juni Kriswanto/AFP Photo)

An overcrowded dinghy with migrants from different African countries is followed by members of the German NGO Jugend Rettet as they approach the Iuventa vessel during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. (Photo by Zohra Bensemra/Reuters)

A participant in costume poses to a camera after a Halloween parade in Kawasaki, south of Tokyo, Japan October 30, 2016. More than 130,000 spectators turned up to watch the parade, where about 2,600 participants dressed up in costumes, according to the organiser. ((Photo by Kim Kyung-Hoon/Reuters)

People wearing and holding helmets take part in a drill simulating a 7.2 magnitude earthquake in Tokyo, Japan, August 26, 2016. The drill was held in Ginza, a high-end shopping and business district, and held ahead of the 93rd anniversary of the Great Kanto Earthquake of 1923 which claimed at least 100,000 casualties. It was one of the largest natural disasters in recorded history and since 1960, September 1st, and the period around that date has been declared as national disaster prevention awareness period. (Photo by Kim Kyung-Hoon/Reuters)

Students receive a group punishment during a military-style close-order drill class at the Qide Education Center in Beijing February 19, 2014. The Qide Education Center is a military-style boot camp which offers treatment for internet addiction. As growing numbers of young people in China immerse themselves in the cyber world, spending hours playing games online, worried parents are increasingly turning to boot camps to crush addiction. Military-style boot camps, designed to wean young people off their addiction to the internet, number as many as 250 in China alone. (Photo by Kim Kyung-Hoon/Reuters)

A protester throws a stone towards a burning police bus in front of him, during clashes with police, in central Kiev, Ukraine, Sunday, January 19, 2014. Hundreds of protesters on Sunday clashed with riot police in the center of the Ukrainian capital, after the passage of harsh anti-protest legislation last week seen as part of attempts to quash anti-government demonstrations. The violent scenes further escalated this ex-Soviet republic's political crisis and showed a rift among opposition leaders, one of whom fought bravely to stop the violence, while others condemned the events from afar. (Photo by Evgeny Feldman/AP Photo)