Iran

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U.S. Defense Secretary Chuck Hagel, addresses his Gulf counterparts in the Conference Palace, Jeddah, Saudi Arabia, Wednesday, May 14, 2014. In remarks opening a conference, Hagel said Wednesday that Washington is hopeful of progress this week in the Iran deal-drafting talks in Vienna. Hagel said that regardless of the outcome of the Iran negotiations, the U.S. will remain "postured and prepared" to ensure that Iran does not acquire a nuclear weapon. (AP Photo/Mandel Ngan, Pool)

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U.S. Defense Secretary Chuck Hagel, addresses his Gulf counterparts in the Conference Palace, Jeddah, Saudi Arabia, Wednesday, May 14, 2014. In remarks opening a conference, Hagel said Wednesday that Washington is hopeful of progress this week in the Iran deal-drafting talks in Vienna. Hagel said that regardless of the outcome of the Iran negotiations, the U.S. will remain "postured and prepared" to ensure that Iran does not acquire a nuclear weapon. (AP Photo/Mandel Ngan, Pool)

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FILE - In this March 19, 1987 file photo, President Ronald Reagan taps his forehead at the White House while responding to a reporter's question during a news conference at which he said he never deliberately lied to the public, despite admitting to a misstatement about Israeli involvement in the Iran-Contra affair. In a 1986 radio address admitting to missteps in the Iran-Contra scandal, the president famously said "mistakes were made" - a passive acknowledgement of wrongdoing that didn't directly implicate anyone. (AP Photo/Dennis Cook, File)

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Secretary of State John Kerry rubs his eyes while testifying on Capitol Hill in Washington, Tuesday, Dec. 10, 2013, before the House Foreign Affairs Committee in the hope of persuading Congress to not forge any new economic sanctions on Iran that could break the recent historic agreement that would end Iran’s progress toward weapons-grade uranium. The deal struck in Geneva prohibits the Obama administration from introducing new sanctions for six months. Iran's foreign minister has said any new package of commercial restrictions would break the agreement. (AP Photo/J. Scott Applewhite)