(Telecompaper) A memo produced by a senior member of the US National Security Council shows officials are thinking about taking over part of the country's mobile network as a way of guarding it against China, Axios reported. The documents say America needs a centralized nationwide 5G network within three years and puts out two options on how to pay for it. In the first option, the US government would pay for and build a single network, which in fact would mean the nationalisation of a historically private infrastructure. The second option would have mobile providers building their own 5G networks and competing with each other. The memo notes that this option would take longer and cost more but that it would cause less commercial disruption to the industry.