The U.S. would not, and need not, infect unwitting computers as zombies. We can build enough power over time from our own resources.
Rob Kaufman, of the Air Force Information Operations Center, suggests mounting botnet code on the Air Force’s high-speed intrusion-detection systems. Defensively, that allows a quick response by directly linking our counterattack to the system that detects an incoming attack. The systems also have enough processing speed and communication capacity to handle large amounts of traffic.
Next, in what is truly the most inventive part of this concept, Lt. Chris Tollinger of the Air Force Intelligence, Surveillance and Reconnaissance Agency envisions continually capturing the thousands of computers the Air Force would normally discard every year for technology refresh, removing the power-hungry and heat-inducing hard drives, replacing them with low-power flash drives, then installing them in any available space every Air Force base can find. Even though those computers may no longer be sufficiently powerful to work for our people, individual machines need not be cutting-edge because the network as a whole can create massive power.
After that, the Air Force could add botnet code to all its desktop computers attached to the Nonsecret Internet Protocol Network (NIPRNet). Once the system reaches a level of maturity, it can add other .mil computers, then .gov machines.
To generate the right amount of power for offense, all the available computers must be under the control of a single commander, even if he provides the capability for multiple theaters. While it cannot be segmented like an orange for individual theater commanders, it can certainly be placed under their tactical control.
According to the following story the Air force is entertaining the thought of creating its own bot net. All your bot are belong to us.