 Prior to the contract revision, the price was about a third that of a contemporary reactor, at just over $1 billion, reflecting the year of the original contract and that it was the first post-Soviet nuclear export order.Increased material costs and currency fluctuations had made completion at that price difficult.According to Moscow Defense Brief, until 2005 Washington exerted considerable diplomatic pressure on Russia to stop the project, as the US administrations viewed it as evidence of Russia's indirect support for the alleged Iranian nuclear arms program.