Editorial: US should prepare for Russian cyber warfare

Historically, “national defense” meant uniformed soldiers and sailors and pilots in tanks, ships and planes. But in warding off Moscow’s coming blows against the U.S. as the West lays on punishing sanctions on Vladimir Putin and Russia for gobbling up parts of Ukraine, our “defense” will fall as much to people in button-up shirts and jeans armed with computer keyboards and mice across America. These are the “troops” running IT and back-end digital systems for thousands of banks, power plants, dams, hospitals, communications networks and other pieces of critical U.S. financial and physical infrastructure.