Palestinian children sleep as they and their family waits for their turn to enter the Rafah border crossing with Egypt, in the southern Gaza Strip, Wednesday, June 1, 2016. On Wednesday Hamas says Egypt has temporarily opened its border crossing with the Gaza Strip. The opening of the Rafah crossing, Gaza’s main gateway to the outside world, is seen as a goodwill gesture ahead of the Muslim holy month of Ramadan. (Photo by Khalil Hamra/AP Photo)





A handout picture provided by Global newsroom of Czech Martin Sonka (C) leading Nigel Lamb (top) of Great Britain and Yoshihide Muroya of Japan (down) along the Mount Fuji prior the third stage of the Red Bull Air Race World Championship in Chiba, Japan on June 1, 2016. (Photo by Predrag Vockovic/EPA/Global Newsroom)





In this image released by Fundacion de Asturias on Wednesday June1, 2016, Hugh Herr poses in this hand out photo. American bionic limb specialist Hugh Herr won Spain's Princess of Asturias 2016 scientific research prize Wednesday in recognition of his work to improve mobility for people with disabilities. Herr, 51, currently heads the Biomechatronic Group at the MIT Media Lab in Massachusetts, where he developed what has been described as the world's most sophisticated ankle prostheses, prize organizers said. (Photo by Fundacion de Asturias via AP Photo)





A dead tiger cub is held up by a Thai official after authorities found 40 tiger cub carcasses during a raid on the controversial Tiger Temple, a popular tourist destination which has come under fire in recent years over the welfare of its big cats, in Kanchanaburi province, west of Bangkok, Thailand June 1, 2016. (Photo by Reuters/Daily News)





Philippine Navy personnel jog past Strategic Sealift Vessel BRP Tarlac LD601 to board their vessel nearby, during the commissioning ceremony of the newly acquired BRP Tarlac and three Landing Craft Heavies (LCHs) at the celebration of Philippine Navy's 118th anniversary in Manila, Philippines June 1, 2016. (Photo by Erik De Castro/Reuters)





Taiwanese electronics manufacturer ASUS's Zenbo home robot demonstrates during the annual Computex computer exhibition in Taipei, Taiwan June 1, 2016. (Photo by Tyrone Siu/Reuters)





Taiwanese electronics manufacturer ASUS's Zenbo home robot demonstrates during the annual Computex computer exhibition in Taipei, Taiwan June 1, 2016. (Photo by Tyrone Siu/Reuters)





A visitor tries Samsung Gear VR virtual reality headsets during annual Computex computer exhibition in Taipei, Taiwan June 1, 2016. (Photo by Tyrone Siu/Reuters)





A visiter tries a pair of HTC's Vive Virtual Reality (VR) goggles, during the annual Computex computer exhibition in Taipei, Taiwan June 1, 2016. (Photo by Tyrone Siu/Reuters)





Participants attend an annual carnival to celebrate International Children's Day in central Krasnoyarsk, Siberia, Russia, June 1, 2016. (Photo by Ilya Naymushin/Reuters)





A woman walks through confetti covering a street during an annual carnival to celebrate International Children's Day in central Krasnoyarsk, Siberia, Russia, June 1, 2016. (Photo by Ilya Naymushin/Reuters)





Participants attend an annual carnival to celebrate International Children's Day in central Krasnoyarsk, Siberia, Russia, June 1, 2016. (Photo by Ilya Naymushin/Reuters)





Ten tables, accommodating a total of 220 guests, are suspended from cranes at a height of 40 metres in front of the Atomium, a 102-metre (335 feet) high structure and its nine spheres, built for the 1958 Brussels World's Fair, as part of the 10th anniversary of the event known as “Dinner in the Sky”, in Brussels, Belgium June 1, 2016. (Photo by Yves Herman/Reuters)





Three of the ten tables, accommodating a total of 220 guests, are suspended from a crane at a height of 40 metres in front of the Atomium, a 102-metre (335 feet) high structure and its nine spheres, built for the 1958 Brussels World's Fair, as part of the 10th anniversary of the event known as “Dinner in the Sky”, in Brussels, Belgium June 1, 2016. (Photo by Yves Herman/Reuters)





Ten tables, accommodating a total of 220 guests, are suspended from cranes at a height of 40 metres in front of the Atomium, a 102-metre (335 feet) high structure and its nine spheres, built for the 1958 Brussels World's Fair, as part of the 10th anniversary of the event known as “Dinner in the Sky”, in Brussels, Belgium June 1, 2016. (Photo by Yves Herman/Reuters)





A sniper is seen at his position during the launching ceremony of the 2018 World Cup and 2017 Confederations Cup volunteer campaign in Moscow, Russia, June 1, 2016. (Photo by Maxim Shemetov/Reuters)





Police and firefighters wave to returning evacuees after a massive wildfire in Fort McMurray, Alberta, Canada June 1, 2016. (Photo by Topher Seguin/Reuters)





Marine One and a support helicopter cross the tail of Air Force One as U.S. President Barack Obama arrives at Joint Base Andrews in Washington to travel to Elkhart, Indiana June 1, 2016. (Photo by Kevin Lamarque/Reuters)





An artistic group perform during a protest against rape and violence against women in Rio de Janeiro, Brazil, June 1, 2016. (Photo by Paulo Campos/Estadão Conteúdo)





A member of the Iraqi security forces fires artillery towards Islamic State militants near Falluja, Iraq, June 1, 2016. (Photo by Alaa Al-Marjani/Reuters)





A member of the Iraqi pro-governement forces fires his weapon on a front line in the Albu Huwa area, south of Fallujah near the Euphrates river, on May 31, 2016, during an operation aimed at retaking areas from the Islamic State group. Iraqi forces launched an offensive a week ago to recapture Fallujah, which became an IS group stronghold after its fighters seized the city in January 2014. (Photo by Moadh Al-Dulaimi/AFP Photo)





Riot police stand guard as people line up to try to buy basic food items outside a supermarket in Caracas, Venezuela June 1, 2016. (Photo by Marco Bello/Reuters)





A member of the self-proclaimed Donetsk People's Republic forces stands guard near buildings destroyed during battles with Ukrainian armed forces, at Donetsk airport, Ukraine, June 1, 2016. (Photo by Alexander Ermochenko/Reuters)





A woman prepare sorghum for food at her home in drought-hit Masvingo, Zimbabwe, June 1,2016. (Photo by Philimon Bulawayo/Reuters)





A Panama Canal pilot maneuvers a miniature tugboat as he sits on a scale cargo boat during a training day on the scale model maneuvering training facility of the Panama Canal, on the outskirts of Panama City in Panama June 1, 2016. (Photo by Carlos Jasso/Reuters)





A police officer conducts a search on people at the University of California, Los Angeles (UCLA) campus after it was placed on lockdown following reports of a shooter that left 2 people dead in Los Angeles, California June 1, 2016. (Photo by Patrick T. Fallon/Reuters)





A woman holds balloons as she waits to get on the metro at a subway station in Madrid, Spain, June 1, 2016. (Photo by Susana Vera/Reuters)





Musicians of the Aymara indigenous community from Tiahuanacu town perform during a ceremony marking the start of celebrations for the Aymara new year, which coincides with the upcoming winter solstice, in La Paz, Bolivia June 1, 2016. (Photo by David Mercado/Reuters)





Members of the Aymara indigenous community from Tiahuanacu town dance during a ceremony marking the start of celebrations for the Aymara new year, which coincides with the upcoming winter solstice, in La Paz, Bolivia June 1, 2016. (Photo by David Mercado/Reuters)





Children play in the mouth of a dinosaur figure at the Shijingshan Amusement Park on International Children's Day in Beijing, China, Wednesday, June 1, 2016. (Photo by Andy Wong/AP Photo)





A photo taken on 31 May, 2016, shows a rescue helicopter arriving to transport a critically injured surfer after a shark ripped off his leg in an attack in Australia's west with witnesses recounting how “all hell broke loose” as his board was snapped in half. The attack happened at Falcon Beach, a suburb south of Perth, not long after Surf Life Saving WA, a volunteer non-profit organisation, tweeted that a shark, believed to be a great white, had been sighted in the area. (Photo by Marta Pascual Juanola/AFP Photo)





Jane Powles, national campaign manager for ANTAR, takes photos in a huge art installation called “Sea of Hands” which consists of thousands of hands in the colours of the Aboriginal flag – red, yellow, black. Part of National Reconciliation Week 2016, the installation is for Australians to reflect on Australia's national identity and the place of Aboriginal and Torres Strait Islander histories and cultures in the nation's story. (Photo by William West/AFP Photo)





MOLA (Museum of London Archaeology) archaeologist Luisa Duarte poses for a picture holding a Roman waxed writing tablet containing the earliest written reference to London, dated AD 65/70-80, which translated reads “Londinio Mogontio” (in London, to Mogontius...), at Bloomberg's offices in central London on June 1, 2016, during a presentation of artefacts found beneath Bloomberg's new European headquarters. A trove of Roman writing tablets has been unearthed in the heart of London, archaeologists announced on June 1, shedding light on the commerce-driven life in what became the City of London financial hub. The wooden tablets contain the earliest surviving written reference to London and the earliest dated handwritten document from Britain from January 8, 57 – less than 14 years after the Roman invasion. (Photo by Daniel Leal-Olivas/AFP Photo)





President Barack gestures while speaking at Concord Community High School in Elkhart, Ind. Wednesday, June 1, 2016. (Photo by Pablo Martinez Monsivais/AP Photo)





Wrecked cars burn at the scene of a terror attack at the Ambassador Hotel, after a car bomb exploded on June 1, 2016 at a top Mogadishu hotel that houses several MPs, killing several people, and followed by a gun battle. Somalia's Al-Qaeda-linked al-Shabaab group was chased out of the capital Mogadishu in 2011 but remains a dangerous threat in both Somalia and neighbouring Kenya, where it carries out frequent attacks. (Photo by Mohamed Abdiwahab/AFP Photo)





People carry a victim of a terror attack at the Ambassador Hotel, after Somalia's Al-Qaeda-linked Shabaab on June 1, 2016, launched a deadly attack on a top Mogadishu hotel popular with MPs, setting off a car bomb and fighting security forces inside the complex. (Photo by Mohamed Abdiwahab/AFP Photo)





Civilians evacuate an unidentified man injured from the scene of a suicide car bombing outside Hotel Ambassador on Maka Al Mukaram Road in Somalia's capital Mogadishu, June 1, 2016. (Photo by Feisal Omar/Reuters)





Ma Wenyi, center holds a photo of his father who was forced to work during World War II at a mine for Mitsubishi Mining Corp., cries as he talks to journalists outside a hotel where a press conference was held in Beijing, China, Wednesday, June 1, 2016. Mitsubishi Materials Corp., one of dozens of Japanese companies that used Chinese forced laborers during World War II, reached a settlement with thousands of victims on Wednesday that includes compensation and an apology. (Photo by Ng Han Guan/AP Photo)





A miniature sculpture of Beatrix Potter character Squirrel Nutkin outside of Buckingham Palace in London on June 1, 2016, which has been updated for the 21st Century by street artist Marcus Crocker in celebration of the 150th anniversary of the author's birth. (Photo by David Parry/PA Wire via ZUMA Press)





A ballet dancer (C) as “Young Senta” performs during the open-air premiere of Richard Wagner's “Der fliegende Hollaender” (The Flying Dutchman) at the amphitheater of the Halde Haniel in Bottrop, Germany, 31 May 2016. The opera production is scheduled to be staged six more times in June. (Photo by Caroline Seidel/EPA)





An opposition supporter wears a headdress of plastic oranges, the party color, as he and others attend a rally of opposition leader Raila Odinga to commemorate Madaraka Day, when Kenya attained internal self-rule in 1963, at Uhuru Park in Nairobi, Kenya, Wednesday, June 1, 2016. The government and opposition held opposing celebrations Wednesday, following weeks of opposition protests demanding the electoral commission be dissolved ahead of next year's elections, due to allegations of bias and corruption. (Photo by Ben Curtis/AP Photo)





An opposition supporter wears a white mask as he and others attend a rally for opposition leader Raila Odinga to commemorate Madaraka Day, when Kenya attained internal self-rule in 1963, at Uhuru Park in Nairobi, Kenya Wednesday, June 1, 2016. (Photo by Ben Curtis/AP Photo)





A supporter of Kenya's opposition Coalition for Reforms and Democracy (CORD), dressed in a gorilla suit rides a motorbike as he leaves after attending a rally to mark Kenya's Madaraka Day, the 53rd anniversary of the country's self rule, at Uhuru Park grounds in Nairobi, Kenya, June 1, 2016. (Photo by Siegfried Modola/Reuters)





A supporter of the opposition Coalition for Reforms and Democracy (CORD), led by former Prime Minister Raila Odinga, wears a mask and looks on during a rally held in Nairobi, Kenya, 01 June 2016. Kenyan opposition staged a rally on Madaraka Day, the national holiday to commemorate the day that Kenya attained internal self-rule from Britain in 1963, to protest against the country's electoral body Independent Electoral and Boundaries Commission (IEBC) and push for reforms ahead of the next year's general elections. (Photo by Dai Kurokawa/EPA)





People belonging to indigenous tribes gather in front of the Sforza Castle, during “Lo spirito del Pianeta” (The Spirit of the Planet) International Festival of Indigenous Peoples, in Milan, Italy, Wednesday, June 1, 2016. (Photo by Luca Bruno/AP Photo)





Protesters light flares after they spray paint on the facade of the Ministry of Justice building, during an anti-government protest in Skopje on May 31, 2016, in a series of protests dubbed Colorful Revolution. Macedonia's president revoked on May 27 the pardons he had granted to 22 politicians implicated in a wiretapping scandal, after the move sparked outrage inside and outside the troubled Balkan country. (Photo by Robert Atanasovski/AFP Photo)





Oil workers and firemen try to extinguish flames at the Khabbaz oil field some 20 kilometres southwest of Kirkuk on June 1, 2016 following a reported improvised explosive attack by the Islamic State (IS) group. The Khabbaz oil field produces around 20,000 barrels of oil per day and is situated between areas disputed by opposing fighters from the Iraqi Kurdish Peshmerga forces and the Islamic State (IS) group. (Photo by Marwan Ibrahim/AFP Photo)





Students leave the scene after a fatal shooting at the University of California, Los Angeles, Wednesday, June 1, 2016, in Los Angeles. (Photo by Ringo H.W. Chiu/AP Photo)





Battlefield Bobcats midfielder Madison Southwick (10) rests her head on her teammate Battlefield Bobcats midfielder Bianca Robson's (6) shoulder during the playing of the National Anthem before the Virginia 6A North Region Soccer girls' semifinal game between the Battlefield Bobcats and the Yorktown Patriots on June 1, 2016. The Battlefield Bobcats defeated the Yorktown Patriots 3-1 to advance to the finals. (Photo by Toni L. Sandys/The Washington Post)





Supporters of Venezuela's President Nicolas Maduro toss a fellow supporter into the air during a rally in Caracas, Venezuela, Wednesday, June 1, 2016. Government supporters and state employees held a rally against “foreign intervention” in Venezuela's affairs. (Photo by Fernando Llano/AP Photo)