FILE- In this April, 9, 2007, file photo, Iranian President Mahmoud Ahmadinejad 

FILE- In this April, 9, 2007, file photo, Iranian President Mahmoud Ahmadinejad speaks at a ceremony in Iran's nuclear enrichment facility in Natanz, south of capital Tehran, Iran. Tensions between the U.S. and Russia have been rising. The countries have been at odds over Syria’s civil war, Iran’s nuclear program and Russia’s crackdown on domestic opposition. U.S. officials are uneasy about what they see as a more assertive foreign policy by Vladimir Putin, who returned to the Russian presidency in May. (AP Photo/Hasan Sarbakhshian, File)
Associated Press
FILE- In this April, 9, 2007, file photo, Iranian President Mahmoud Ahmadinejad speaks at a ceremony in Iran's nuclear enrichment facility in Natanz, south of capital Tehran, Iran. Tensions between the U.S. and Russia have been rising. The countries have been at odds over Syria’s civil war, Iran’s nuclear program and Russia’s crackdown on domestic opposition. U.S. officials are uneasy about what they see as a more assertive foreign policy by Vladimir Putin, who returned to the Russian presidency in May. (AP Photo/Hasan Sarbakhshian, File)
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