Nearly all the Internet founders who are still alive are on the internet-history mailing list, which is still active. Vint is, for instance. The author goes on

Nearly all the Internet founders who are still alive are on the internet-history mailing list, which is still active. Vint is, for instance. The author goes on and on about the 90's, I think because that is easier to document than the 60's. Tracing the evolution of the "nuclear" narrative back then -- who cares? This article is a whole lot of research proving nothing except the vapidity of the media. The ARPANET did get started in the 60's, and packet-switching to provide "multiple paths in case one is destroyed" was indeed one of the motivations. Then it took on a life of its own and no one devoted any more thought to nuclear war. mrighele's answer is excellent.