Members of the Oath Keepers provide security at the  Sugar Pine Mine outside Grants Pass, Oregon, on April 22, 2015. The  owners of the Oregon gold mine who called in armed activists the Oath  Keepers to protect their claim amid a bitter land use dispute with the  U.S. government have appealed a federal stop-work order, U.S. officials  said.                 
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                                                                Jim Urquhart / Reuters
                              A man rescues a migrant from the Aegean sea, in the  eastern island of Rhodes, on April 20, 2015. Greek authorities said that  at least three people died, including a child, after a wooden boat  carrying tens of migrants ran aground off the island of Rhodes.                 
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                                                                Argiris Mantikos/AP                              
         
                              An elderly protester yells as she is blocked by a  barricade of policemen while marching down the street during a rally in  central Seoul, South Korea, on April 24, 2015. About 260,000 workers  took part in a nationwide one-day strike, including about 60,000  government employees and 10,000 teachers, according to the Korean  Federation of Trade Unions. They protested against the government's push  to cut pensions and ease rules for firing employees, according to local  media.                 
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                                                                Kim Hong-Ji / Reuters                              
         
Holocaust survivor Robert Salomon (c.) is  assisted as he walks at the former World War II concentration camp of  Natzweiler-Struthof during ceremonies to mark the French National  Deportation Day, in Natzweiler, eastern France, Sunday.                                Patrick Hertzog/Reuters
                                              Ani Berberian, of Montville, N.J., marches in midtown Manhattan in New  York to mark the centennial of the killings of as many 1.5 million  Armenians under the Ottoman Empire _ today's Turkey _ on Sunday.  Berberian is holding a photograph of her paternal grandmother, Mary  Haroutounian who as a child survived the killings but lost her parents.  The activists are demanding that the U.S. government acknowledge the  deaths during World War I as genocide.                             Mark Lennihan/AP