The main problem lies in Israel-Iran relations The latest Iranian nuclear talks concluded in Istanbul, Turkey on April 14, with both Iran and the six world powers describing them as positive and constructive. The six P5+1 members, the United States, France, Russia, China, Britain and Germany, have spearheaded diplomatic efforts to persuade Iran to limit its nuclear program, which Iran says is purely peaceful but the West suspect has military purposes. After over a year of stalled talks, Iran and the Group 5+1 eventually accepted last month to resume their negotiations in Istanbul on April 14 and in case of good progress…