. >> i am joined by jennifer harris and patrick cronin. >> if selling arms to vietnam is the arranges what is the question? it's not as if it comes to a real military conflict, these arms salesserly going to be doing the work in any of that conflict just as we see with our continued military sales to taiwan. you know, the u.s. will have to stand behind the security guarantees in order to be seen as credible. >> also this evening a conversation with andrew mcafee, author and principal research scientist at m.i.t.'s initiative on the digital economy. >> there is a fear that silicon valley might become the next wall street in the minds of people, in other words a great wealth generator engine not benefiting many of us at all. i think that's inaccurate. i think it is benefiting us hugely and we need tech industries to make their case better and stop shooting themselves in the foot. >> ian: we conclude with global health. dr. andre anthony fauci of the national institutes of health. >> we will see other outbreaks. i remember at the end of the curve of the ebola outbreak, i was on many prog