it would in fact lead to a final deal, a permanent rule to get iran to give up its nuclear program. the president in the oval office this evening preparing to address the nation and the world. this picture from earlier on meeting with ben rhodes, dennis left in the green sweater. among the aids briefing the president as the talks were going on in geneva. it's where ann curry is. she's been reporting on this process that's been dragged on for weeks. ann brought in the secretary for key moments. they thought they had a deal, now it's the real thing. give us the top few elements of this and why they are so satisfied with it. >> reporter: well, you know, i think the devil is going to be in the details. we don't know all the details,