Iranian Foreign Minister Mohammad Javad Zarif addresses journalists during a news briefing in Athens, Greece, on Thursday, May 28, 2015. Iran's foreign minister is holding out hope that a "sustainable, mutually respectful" deal can be struck with world powers in talks over his country's nuclear program before the current deadline of June 30.
Iranian Foreign Minister Mohammad Javad Zarif addresses journalists during a news briefing in Athens, Greece, on Thursday, May 28, 2015. Iran's foreign minister is holding out hope that a "sustainable, mutually respectful" deal can be struck with world powers in talks over his country's nuclear program before the current deadline of June 30. Yorgos Karahalis AP
Iranian Foreign Minister Mohammad Javad Zarif addresses journalists during a news briefing in Athens, Greece, on Thursday, May 28, 2015. Iran's foreign minister is holding out hope that a "sustainable, mutually respectful" deal can be struck with world powers in talks over his country's nuclear program before the current deadline of June 30. Yorgos Karahalis AP