Hong Kong's new Chief Executive Leung Chun-ying attends the flag-raising ceremony to mark the 15th anniversary of the Hong Kong handover to China in Hong Kong Sunday. Kin Cheung/AP hide caption

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European countries have agreed to stop importing Iranian oil as of Sunday. This could make it harder for Iran to find markets for its crude. Iran has been filling up tankers off its coast, but analysts say it could run out of storage capacity. This photo shows oil tankers off Iran's coast in January. Kamran Jebreili/AP hide caption

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The Egyptian Presidency released this image of Mohammed Morsi giving a speech to tens of thousands of people in Cairo's Tahrir Square on Friday. Morsi was sworn in as Egypt's president on Saturday. Sherif Abdel Monaem/EPA /Landov hide caption

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A man walks past a campaign sign for Enrique Pena Nieto, of the opposition Institutional Revolutionary Party. Mexicans vote for their next president on Sunday. Esteban Felix/AP hide caption

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