Iran

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Benjamin Netanyahu's fervent criticism of the Obama administration's pursuit of an Iran nuclear deal is likely to continue to strain Israel's alliance with Washington. (Associated Press)

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U.S. Secretary of State John Kerry, right, walks around the grounds of the Beau-Rivage hotel during a break in negotiations with Iran's Foreign Minister Javad Zarif over Iran's nuclear program in Lausanne, Switzerland, Tuesday, March 17, 2015. Top U.S. and Iranian diplomats returned to talks on Tuesday, trying to resolve differences blocking a deal that would curtail Iran's nuclear program and ease sanctions on the country. (AP Photo/Brian Snyder, Pool)

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U.S. Secretary of State John Kerry, left, listens to Iran's Foreign Minister Mohammad Javad Zarif, right, before resuming talks over Iran's nuclear program in Lausanne, Switzerland, Monday, March 16, 2015. (AP Photo/Brian Snyder, Pool)

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Iranian President Hassan Rouhani, who is also a member of the Assembly of Experts, arrives to attend a biannual meeting of the assembly in Tehran, Iran, Tuesday, March 10, 2015. Iran's most influential clerical body charged with choosing or dismissing the nation's supreme leader has elected a hard-line ayatollah as its new chairman, the official IRNA news agency reported on Tuesday. IRNA said Mohammad Yazdi, the deputy chairman of the 86-member Assembly of Experts, got 47 votes in his favor from among 73 clerics who attended the session. (AP Photo/Vahid Salemi)

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In this picture released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei attends a meeting with a group of environmental officials and activists at his residence in Tehran, Iran, Sunday, March, 2015. (AP Photo/Office of the Iranian Supreme Leader)

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White House press secretary Josh Earnest speaks during his daily news briefing at the White House in Washington, Wednesday, March 4, 2015, where he answered questions including on Iran, and about former Secretary of State Hillary Clinton's use of email. (AP Photo/Jacquelyn Martin)

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In this March 3, 2015, photo, President Barack Obama speaks about Iran and Israeli Prime Minister Benjamin Netanyahu's speech to Congress during a meeting with Defense Secretary Ashton Carter in the Oval Office of the White House in Washington. (Associated Press) **FILE**

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A deal to curb Iran's nuclear programs and ease economic sanctions on Tehran would be seen as "extremely positive" by Pakistan and many other countries in the region, Pakistani Ambassador to the U.S. Jalil Abbas Jilani told a breakfast hosted by the Christian Science Monitor just an hour before the Israeli leader began speaking on Capitol Hill.

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President Obama speaks about Iran and Israeli Prime Minister Benjamin Netanyahu's speech to Congress, Tuesday, March 3, 2015, during a meeting with Defense Secretary Ash Carter in the Oval Office of the White House in Washington. (AP Photo/Jacquelyn Martin) ** FILE **

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Addressing a joint meeting of Congress in Washington, Israeli Prime Minister Benjamin Netanyahu said an emerging U.S.-Iran deal would "all but guarantee" Tehran will get nuclear weapons. (AP Photo/Susan Walsh)

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This image taken from Iranian state TV, shows damage to a mock U.S. aircraft carrier during large-scale naval and air defense drills by Iran's Revolutionary Guard, near the Strait of Hormuz, Iran, Wednesday, Feb. 25, 2015. The drill, named Great Prophet 9, was the first to involve a replica of a U.S. carrier. Cmdr. Kevin Stephens, the spokesman for the U.S. Navy's 5th Fleet in Bahrain, said they were monitoring the drills, but downplayed the simulated attack on the carrier, saying the U.S. military was "not concerned about this exercise."(AP Photo/Iran TV) TV OUT

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Saying "Iran will not get a nuclear weapon," Secretary of State John F. Kerry defended the Obama administration's negotiations with Iran. He testified that U.S. policy is to prevent such a scenario. (Associated Press)

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Gerardo Pollicita has charged Argentina's President Cristina Fernandez with "aggravated concealment" and a number of lesser infractions in connection with covering up a deal with Iran after the 1994 bombing of a Jewish community center. (Associated Press Photographs)

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An Iranian man holds a portrait of Supreme Leader Ayatollah Ali Khamenei during a rally commemorating the 36th anniversary of Islamic Revolution under Azadi Tower, Tehran, Iran, Wednesday, Feb. 11, 2015. Iran marked the anniversary of its 1979 Islamic Revolution on Wednesday with massive rallies, with many chanting against the U.S. and Israel as the country tries to reach a permanent deal with world powers over its contested nuclear program. (AP Photo/Ebrahim Noroozi)

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Senate Foreign Relations Committee Chairman Sen. Bob Corker, R-Tenn. speak to reporters on Capitol Hill in Washington, Tuesday, Feb. 10, 2015, after a closed-door security briefing on nuclear negotiations with Iran. (AP Photo/J. Scott Applewhite)

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In this photo released by an official website of the office of the Iranian Supreme Leader, Iranian Supreme Leader Ayatollah Ali Khamenei delivers speech during a meeting with air force commanders and officers in Tehran, Iran, Sunday, Feb. 8, 2015. Iran's top leader says no deal is better than a bad deal when it comes to negotiations with world powers over the country's disputed nuclear program. (AP Photo/Office of the Iranian Supreme Leader)

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Sen. Robert Menendez, New Jersey Democrat, had previously co-authored legislation to tighten sanctions on Iran if there is no deal by the end of June, but he said Tuesday that he and other party leaders want to give the Obama administration until at least March 24 before throwing their weight behind the legislation — and they'll only support it if there's no agreement in place with Tehran by then. (Associated Press)

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Treasury Undersecretary for Terrorism and Financial Intelligence David Cohen testifies on Capitol Hill in Washington, Tuesday, Jan. 27, 2015, before the Senate Banking Committee hearing on Iran sanctions. A group of Senate Democrats told the White House on Tuesday that they won't support passage of an Iran sanctions bill until at least the end of March. (AP Photo/Susan Walsh)