"Mr Leverett, who now works at the New America Foundation, a thinktank in Washington, is the latest in a series of analysts and agents to accuse the CIA publication review board of stifling criticism of the administration or the intelligence-gathering operations in the run-up to the war in Iraq. However, Mr Leverett goes a step further in accusing the White House of putting pressure on the CIA to prevent the distribution of views which do not conform to its policy of refusing any diplomatic discussions with Iran."

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