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People wave catalan separatist flags during an anti-royalist demonstration at Catalunya square in Barcelona June 2, 2014. Spain's King Juan Carlos said on Monday he would abdicate in favour of his son Prince Felipe, aiming to revive the scandal-hit monarchy at a time of economic hardship and growing discontent with the wider political elite.ALBERT GEA/Reuters

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A visitor is reflected in a window as he arrives at the John F. Kennedy Presidential Library and Museum in Boston, Massachusetts June 2, 2014.BRIAN SNYDER/Reuters

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German test pilot Markus Scherdel steers the solar-powered Solar Impulse 2 aircraft during its maiden flight at its base in Payerne June 2, 2014. The aircraft, which was unveiled on April 9, has a wingspan of 72 metres (236 ft), and weighs 2.4 tons, bearing in total more than 17,000 solar cells. The attempt to fly around the world in stages using only solar energy will be made in 2015.DENIS BALIBOUSE/Reuters

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Supporters of Afghan presidential candidate Abdullah Abdullah are seen through a broken window during an election campaign in Qala i Naw, capital of Badghis province, June 2, 2014. The second round presidential election will be held on June 14.MOHAMMAD ISMAIL/Reuters

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An Afghan woman attends an election campaign of Afghan presidential candidate Abdullah Abdullah in Chaghchran capital of Ghor province June 2, 2014.The second round presidential election will be held on June 14.MOHAMMAD ISMAIL/Reuters

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Instruments are left on the ground during a break as members of the Royal Marines Band rehearse for Beating Retreat on Horse Guards Parade in London June 2, 2014. The Beating Retreat, which is traditionally a celebration of Prince Philip's birthday, will be held on Horse Guards Parade on Wednesday.NEIL HALL/Reuters

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Participants paddle dragon boats during a competition amid heavy rainfall to celebrate the Dragon Boat Festival in Tongren, Guizhou province June 2, 2014. The festival is commemorated in memory of Chinese patriotic poet Qu Yuan, who drowned himself on the day in 277 B.C.CHINA DAILY/Reuters

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Members of the Civil Defence rescue children after what activists said was an air strike by forces loyal to Syria's President Bashar al-Assad in al-Shaar neighbourhood of Aleppo June 2, 2014.SULTAN KITAZ/Reuters

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A black bear lies on a hammock at a residential back yard in Daytona Beach, Florida early evening on May 30, 2014. The bear used the hammock for more than 15 minutes before being startled when the back yard lights were turned on according to the photographer. Picture taken on May 30, 2014.RAFAEL C. TORRES/Reuters

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Pakistani day laborer Hassanain Ahmad, 17, cools off under a water supply pipe as the temperature rises in Islamabad, Pakistan, Monday, June 2, 2014. Temperatures reached 39 degrees Celsius (102.2 degrees Fahrenheit).Muhammed Muheisen/The Associated Press

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A pro-Russian rebel runs for cover during clashes with Ukrainian troops on the outskirts of Luhansk, Ukraine, Monday, June 2, 2014. Hundreds of pro-Russia insurgents attacked a border guard base in eastern Ukraine on Monday, with some firing rocket-propelled grenades from the roof of a nearby residential building. At least five rebels were killed when the guards returned fire, a spokesman for the border guard service said.Vadim Ghirda/The Associated Press

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