In this photo taken Sunday, May 6, 2012, Denis Lutskevich, left, is detained by police during an opposition rally in Bolotnaya Square in Moscow. The former naval cadet and first-year student, 21-year-old Lutskevich was attending his first protest when he was detained, and is still in prison Monday May 6, 2013, on the first year anniversary of the protest. (Photo by Pavel Golovkin/AP Photo)

Hanging bird cages are displayed on poles during a bird-singing contest in the Rueso district in Thailand's southern province of Narathiwat on March 23, 2014. Hundreds of bird owners from Thailand, Malaysia and Singapore took part in the traditional contest held every year. (Photo by Madaree Tohlala/AFP Photo)

Mount Sinabung volcano erupts, as seen from Tiga Pancur village, Karo Regency in Indonesia's North Sumatra province October 8, 2014. (Photo by Y. T. Haryono/Reuters)

An actor performs during the show “Paris de Nuit” in Santiago, Chile, 20 September 2016. The show is a combination of cabaret and circus, produced by the Recirquel Contemporary Circus Company from Budapest, and will be performed at the Mapocho Cultural station from 20 to 25 September. (Photo by Mario Ruiz/EPA)

Black Nazarene devotees clamber on top of one another to to touch the cross on January 9, 2015 in Manila, Philippines. The Feast of the Black Nazarene culminates in a day long procession on January 9 as barefoot devotees march to see and touch the image of the Black Nazarene. The Black Nazarene is a dark wood sculpture of Jesus brought to the Philippines in 1606 from Spain and considered miraculous by Filipino devotees. The event falls a week ahead of the visit of Pope Francis who will travel to Leyte and Manila during his visit to the Philippines from January 15–19. The visit is expected to attract crowds in the millions as Filipino Catholics flock to catch a glimpse of the leader of the Catholic Church. The Philippines is the only Catholic majority nation in Asia with around 90 percent of the population professing the faith. (Photo by Dondi Tawatao/Getty Images)

Mara Salvatrucha (MS) gang members show off their weapons in the Las Victorias district of San Salvador. In March 2012, the two largest gangs in El Salvador - the Mara Salvatrucha (MS) and the Barrio 18 (M18) - agreed on a truce following secret negotiations between gang leaders in prison which were mediated by a bishop and a former rebel leader. It is unclear whether the decision was the idea of the gangs themselves or whether they were encouraged by the government. (Photo by Adam Hinton)

Lightning strikes the Willis Tower (formerly Sears Tower) in downtown on June 12, 2013 in Chicago, Illinois. (Photo by Scott Olson/Getty Images)

Indian Air Force soldiers toss their rifles as they perform during the full-dress rehearsal for Indian Air Force Day at the Hindon air force station on the outskirts of New Delhi October 6, 2015. (Photo by Anindito Mukherjee/Reuters)