Shelter dog Rohan takes a break from his scent detection trials to play outside. Rohan is one of several dogs training to detect homemade bombs at the Canine Science Collaboratory at Arizona State University. Jimmy Jenkins/KJZZ hide caption

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WikiLeaks founder Julian Assange reads a statement from the balcony of the Ecuadorean Embassy in central London in 2012. Assange took refuge at the embassy to avoid extradition to Sweden where he faces allegations of sex crimes, which he denies. Lefteris Pitarakis/AP hide caption

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President Obama participates in a roundtable discussion with members of the Muslim community Wednesday while visiting the Islamic Society of Baltimore in Windsor Mill, Md. Mandel Ngan/AFP/Getty Images hide caption

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Navy Secretary Raymond Mabus (far right) and (to his right) Marine Corps Gen. Robert Neller testify Tuesday on Capitol Hill during a Senate Armed Services Committee hearing. Cliff Owen/AP hide caption

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