national security issue prepared by the Director of Central Intelligence. The impending opening of the Bushehr I plant in late 2010 prompted the White House to question why Iran is continuing to enrich uranium within its borders. "Russia is providing the fuel, and taking the fuel back out," White House spokesman Robert Gibbs said in August. "It, quite clearly, I think, underscores that Iran does not need its own enrichment capability if its intentions, as it states, are for a peaceful nuclear program," he said. On 8 January 2012, US Secretary of Defense Leon Panetta said on Face the Nation that Iran was not trying to develop a nuclear weapon, but was trying to develop a nuclear capability. He also urged Israel to work together rather than make a unilateral strike on Iran's nuclear installations. On 1 August 2012, US Defense Secretary Leon Panetta while in Israel said that the United States had "options," including military options, to prevent Iran from attaining a nuclear weapon, should diplomacy fail. In 2012, sixteen US intelligence agencies, including the CIA, reported that Iran was pursuing research that could enable it to produce nuclear weapons, but was not attempting to do so. The senior officers of all of the major American intelligence agencies stated that there was no conclusive evidence that Iran has made any attempt to produce nuclear weapons since 2003. On 14 January 2013, the Institute for Science and International Security (a US think tank) published a 154-page report by five US experts titled "U.S. Nonproliferation Strategy for the Changing Middle East", which stated that Iran could produce enough weapon-grade uranium for one or more nuclear bombs by the middle of 2014. Therefore, the report recommended that the United States should increase sanctions on Iran in order to curb its ability to develop weapon-grade uranium. In addition the report states: "The president should explicitly declare that he will use military force to destroy Iran's nuclear program if Iran takes additional decisive steps toward producing a bomb." On 2 February 2013, speaking at the Munich Security Conference, US Vice President Joseph Biden said that the Obama administration "would be prepared to meet bilaterally with the Iranian leadership. We would not make it a secret that we were doing that. We would let our partners know if that occasion presented itself. That offer stands, but it must be real and tangible, and there has