Big Hurdles to Iran Nuclear Deal as Deadline Looms

a senior Western diplomat said on Friday major differences remain between Iran and world powers on several key issues including sanctions relief and U.N. access to Iranian sites,. As a June 30 deadline for a final nuclear deal approaches, the diplomat told reporters that the most difficult points of negotiations need to be solved in the coming days. He spoke of the upcoming difficulties in the Austrian capital, where talks between the United States, Britain, France, Germany, Russia, China and Iran have entered their final phase. Iran and six major powers set themselves an end-June deadline for a long-term deal that would lift sanctions crippling the Iranian economy in exchange for limits on Tehran's nuclear program.But diplomats said the talks would likely run into July.