Computer hacking experts from the National Security Agency and various branches of the U.S. armed services try to break into remote networks set up by competing U.S. military service academies. The hackers'€™ war room is in a building in Columbia, Md., owned by Parsons, a U.S. defense contractor. David Welna/NPR hide caption

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The second atomic bomb test at Bikini Atoll on July 25, 1946. The Marshall Islands, where Bikini is located, is suing the U.S. for what it calls a violation of the Nuclear Non-Proliferation Treaty. Anonymous/AP hide caption

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President Obama speaks at a joint news conference with Japan's Prime Minister Shinzo Abe in Tokyo on Thursday. Obama reinforced the U.S.-Japan security commitment. Junko Kimura-Matsumoto/AP hide caption

itoggle caption Junko Kimura-Matsumoto/AP

Syrian President Bashar Assad (right) visits the Christian village of Maaloula, near Damascus on Sunday. Assad's forces have been gaining the upper hand in the fighting, and the CIA is now increasing training and aid to Syrian rebels. AP hide caption

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