Photos from the 32st Annual National Peace Officers Memorial Service at the West Front Lawn of the U.S. Capitol in Washington, DC on May 15, 2013. Senior officials including President Barack Obama attend the annual event to honor law enforcement who were killed in the line of duty in the previous year. UPI/Olivier Douliery/Pool
Sailors direct an X-47B Unmanned Combat Air System (UCAS) demonstrator aircraft Tuesday, May 14, 2013 aboard the aircraft carrier USS George H.W. Bush (CVN 77). George H.W. Bush is the first aircraft carrier to successfully catapult launch an unmanned aircraft from its flight deck. UPI/Kevin J. Steinber/US Navy
Supporters of former Pakistani prime minister and head of the Pakistan Muslim League-N (PML-N), Nawaz Sharif, celebrate the victory of their party a day after general elections, in Rawalpindi, Pakistan on May 12, 2013. UPI/Sajjad Ali Qureshi
Prince Harry arrives on Capitol Hill to tour a photography exhibit by HALO Trust, a British nonprofit focused on removing hazardous war debris, including un-exploded devices and landmines, on May 9, 2013 in Washington, D.C. UPI/Kevin Dietsch
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