A winter swimmer, wearing a Santa Claus hat to celebrate the upcoming Christmas, reacts as he plays on a frozen lake at a park in Shenyang, Liaoning province, December 22, 2014. The characters on the hat read: “Shenyang Winter Swimming”. (Photo by Reuters/Stringer)

Takahiro Shito, 47, and his wife Sayomi Shito, 46, pray with their children Tomoka, 14, and Kenya 16, and their great uncle Akinori Takahashi, 76, as they pay respects to their daughter Chisato,12, buried in a nearby cemetery, victim of the Okowa Elementary School tragedy, who was killed during last year's tsunami on March 11, 2012 near Ishinomaki, Japan. Teachers at the school weren't trained for tsunami evacuation and didn't to lead the children up the snow covered mountain behind the school after the tsunami warning was sounded. Out of 108 students at the school, 74 died and four remain missing; 10 of the school's 13 teachers were also killed. (Photo by Daniel Berehulak /Getty Images)

A wounded member of the Afghan police reaction force waits for treatment in Alingar, Laghman province, on April 30, 2012. A bomb exploded next to opium poppy fields during a poppy eradication campaign in, wounding two Afghan policemen, police officials said. (AP Photo/Rahmat Gul)

French actress Marie Cornillon wearing body paint and a headgear with bull horns, poses in front of the Nimes arena with a sign inscribed “Abolissons la corrida” (Abolish corrida bullfighting) as part of a protest by the People for the Ethical Treatment of Animals (PETA) animal rights group to ban bullfighting in France, on November 16, 2022. (Photo by Pascal Guyot/AFP Photo)

Masked men ride in a morning procession as part of the “Cavalhadas” festival in Pirenopolis, Brazil, Sunday, May 19, 2013. The popular festival is a tradition that was introduced in the 1800's by a Portuguese priest to mark the the ascension of Christ. The 3-day festival reenacts the Christian knights' medieval defeat of the Moors. (Photo by Eraldo Peres/AP Photo)

“The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in Ukrainian SSR, which was under the direct jurisdiction of the central authorities in Moscow. An explosion and fire released large quantities of radioactive contamination into the atmosphere, which spread over much of Western USSR and Europe. It is widely considered to have been the worst nuclear power plant accident in history, and is one of only two classified as a level 7 event on the International Nuclear Event Scale (the other being the Fukushima Daiichi nuclear disaster)”. – Wikipedia (Photos by Alexandr Strannik, August 1986; Source: LiveJournal)

A Chinese girl touches the gun of a relievo featuring Chinese soldiers fighting with Japanese troops during World War II at an exhibition at the Anti-Japan War Museum to mark the 60th Anniversary of the Victory of the Chinese People's War of Resistance Against Japan on August 18, 2005 in Beijing, China. (Photo by Cancan Chu/Getty Images)

A tribal fighter loyal to Yemen's government stands in Al Khurais village of Nihm district east of the capital Sanaa January 11, 2016. (Photo by Ali Owidha/Reuters)