By now, Obama should also be wise enough not to trust the advice of his spy chiefs when it comes to cyber conflict. . . . “I think the public believes that the U.S. government – Cyber Command, NSA, FBI, Homeland Security – has the capability to defend the electric power grid, pipelines, trains, banks that could be attacked by other nations through cyber,” Clarke told me. “The truth is the government doesn’t have the capability, doesn’t have the legal authority and doesn’t have a plan to do it.” . . . Starting with Vietnam, the list of wars the United States has entered with disastrous results continues to grow. Engaging Russia in a potentially endless cyberwar based on questionable evidence will only make it longer. It’s time to find better alternatives.