On October 1, 2009, the Obama administration went ahead with a Bush administration program, increasing nuclear weapons production. The "Complex Modernization" initiative expanded two existing nuclear sites to produce new bomb parts. The administration built new plutonium pits at the Los Alamos lab in New Mexico and expanded enriched uranium processing at the Y-12 facility in Oak Ridge, Tennessee.[citation needed] In November 2013, the Obama administration opened negotiations with Iran to prevent it from acquiring nuclear weapons, which included an interim agreement. Negotiations took two years with numerous delays, with a deal being announced on July 14, 2015. The deal titled the "Joint Comprehensive Plan of Action" saw sanctions removed in exchange for measures that would prevent Iran from producing nuclear weapons. While Obama hailed the agreement as being a step towards a more hopeful world, the deal drew strong criticism from Republican and conservative quarters, and from Israeli Prime Minister Benjamin Netanyahu.[403][404][405] In addition, the transfer of $1.7 billion in cash to Iran shortly after the deal was announced was criticized by the Republican party. The Obama administration said that the payment in cash was because of the "effectiveness of U.S. and international sanctions.