The U.S. Senate passed a bill last week that would form a government-industry working group to "examine ways to replace automated systems with low-tech redundancies, like manual procedures controlled by human operators." The news release linked above specifically references an attack on the Ukrainian grid that succeeded only partially because of such manual technology: This legislation was inspired in part by Ukraine’s experience in 2015, when a sophisticated cyber-attack on that country’s power grid led to more than 225,000…