Iranian President Mahmoud Ahmadinejad waves in Pakdasht, southeast of Tehran, Nov. 23. Ahmadinejad on Wednesday said he was surprised at European moves to isolate Tehran's central bank. HO/Reuters/Landov hide caption

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U.S. Weighs Sanctions Targeting Iran's Central Bank
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GOP Candidates Address Iranian Nuclear Issues
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Italian Premier Silvio Berlusconi promised Tuesday to resign after parliament passed economic reforms demanded by the European Union. The debt crisis in Europe has been compounded by political problems. Andrew Medichini/AP hide caption

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Political Paralysis Worsens European Debt Crisis
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Nicaragua, Guatemala: '80s Rebels Seek Leadership
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A poster warns U.S. companies of the threat of cyber-espionage. A new report released Thursday names China and Russia as the top culprits in the theft of U.S. intellectual property and technology. Courtesy of the Office of the National Counterintelligence Executive hide caption

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China, Russia Top List Of U.S. Economic Cyberspies
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Stuxnet Poses Thorny Issue For Cyberdefenders
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Instructor Mark Fabro leads an exercise at the Department of Homeland Security's cyberdefense facility at the Idaho National Laboratory in September. Training at the lab is intended to help protect the nation's power, water and chemical plants, electrical grid and other facilities from computer viruses such as Stuxnet. Mark J. Terrill/AP hide caption

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Stuxnet Raises 'Blowback' Risk In Cyberwar
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Eurozone Debt Crisis Divides France, Germany
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Adel al-Jubeir, shown in this 2004 photo, is Saudi Arabia's ambassador to the U.S. and was the target of an Iranian assassination plot, according to the U.S. government.

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Will Saudis Play Oil Card In Revenge Against Iran?
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U.S. Foils Plot To Kill Saudi Ambassador
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Security Expert: U.S. 'Leading Force' Behind Stuxnet
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There's increased uncertainty in Europe over the future of the common currency, the euro. The central problem is that some euro users, such as Greece, have weak economies while others, such as Germany, have strong ones. Michael Probst/AP hide caption

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Europe's Dilemma: More Integration Or Less?
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For the first seven years of the war in Afghanistan, almost all U.S. and NATO supplies were trucked overland to Afghanistan through parts of Pakistan effectively controlled by the Taliban. Here, smoke and flame rise from a burning NATO supplies oil tanker after armed militants torched the tankers in Mithri, Pakistan, in February. STR/AFP/Getty Images hide caption

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U.S. Now Relies On Alternate Afghan Supply Routes
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Eurozone Troubles Impact U.S. Economy
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