The Iranian nuclear program was launched in the 1950s with the help of the United States as part of the 'Atoms for Peace' program (I know, you can't make it up). President Ford signed a directive in 1976 offering Tehran the chance to buy and operate a US-built reprocessing facility for extracting plutonium from nuclear reactor fuel. The deal was for a complete 'nuclear fuel cycle'. At the time, Richard Cheney was the White House Chief of Staff, and Donald Rumsfeld was the Secretary of Defense. The Ford strategy paper said the "introduction of nuclear power will both provide for the growing needs of Iran's economy and free remaining oil reserves for export or conversion to petrochemicals." The work was begun by the Bonn firm Kraftwerk-Union A.G., a unit of Siemens AG, which contracted to build two nuclear reactors based on a contract worth $4 to $6 billion, signed in 1975. After the Iranian Revolution in 1979, the government temporarily disbanded the program, and then revived it with the assistance of Russia.