Negotiators at their round table in Geneva, where talks are being held about Iran's nuclear ambitions. Denis Balibouse /Reuters/Landov hide caption

toggle caption Denis Balibouse /Reuters/Landov

Iranian President Hassan Rowhani earlier this month. Behrouz Mehri /AFP/Getty Images hide caption

toggle caption Behrouz Mehri /AFP/Getty Images

Russian President Vladimir Putin and President Obama when they sat down together in June at a G8 summit in Northern Ireland. Alexi Nikolsky /EPA /LANDOV hide caption

toggle caption Alexi Nikolsky /EPA /LANDOV

NPR thanks our sponsors

Become an NPR sponsor