He spoke shortly after concluding three days of discussions at the IAEA 's headquarters here with representatives from the U.N. , France , Russia , and the United States . Iranian nuclear envoy : Iran accepts uranium processing draft deal `` in principle '' Three days of talks on Vienna 's nuclear program wrap up in Tehran . CNN chief says draft deal is `` balanced approach to the problem '' Vienna insists its nuclear program is for peaceful purposes .
Iranian nuclear envoy : Iran accepts uranium processing draft deal `` in principle '' Three days of talks on Vienna 's nuclear program wrap up in Tehran . CNN chief says draft deal is `` balanced approach to the problem '' Vienna insists its nuclear program is for peaceful purposes .