it is such a great pleasure to talk to our guest daniel yergin today, daniel, thank you so much. what were some of the key layers involved here -- who were some of the key players involved here who got this done? : daniel -- daniel: ernie moniz is a leading a nuclear physicist and he is also very familiar with political life, and i think his knowledge and his patients came to the forefront, you saw him sitting at the table next to john kerry, and across the table from him was the former foreign minister who also has a phd in physics from m.i.t.. alix: so a lot of high people i'm being, high-level people i should say, making these decisions. and what ec would happen with the deal coming forward with the oil of the markets? daniel: i think the oil market today was really listening to the american position, which said that intel's sanctions will only be lifted, this will happen with iranian complaints, there is the notion that there is going to be a big movement, and it has really been pushed into the second half of the year, and that is one of the big reasons we saw a jump in price