thank you for coming on. jon: breaking news now. secretary of state john kerry is heading to saudi arabia in the wake of growing tension over an emerging nuclear deal with iran. he's travelling from the nuclear talks in switzerland to try to ease any concerns on the part of iran's sunni rival. he will meet with saudi arabia's new leader king solomon and with other gulf state foreign ministers. national security correspondent joins us live from the pentagon with more on that. >> secretary of state john kerry is on route to riyadh to reassure the saudis who are sunni and in particular the new saudi king king solomon that the nuclear deal being negotiated by the u.s. and the p 5 in geneva will be good for the region of the this is going to be a hard sell to the saudis who kerry needs as part of the anti-isis coalition in iraq. saudis are terrified that iran is playing the west and will get a nuclear bomb. this will set off a nuclear arms