NPR: Iran’s leaders say the country’s nuclear program exists only for the purpose of generating electricity. Western intelligence agencies say the Islamic republic aims to produce nuclear weapons and intimidate its neighbors. How close is Iran to getting the bomb? How might it be stopped? And what are the implications for the United States and the rest of the world if Iran succeeds? This week, NPR looks at Iran and its suspected nuclear weapons programs in a series. Related LinkIran And The Bomb: US Keeps Options Open