By Jeff Martin, Frank Bajak, Nomaan Merchant, Associated Press Published May 15, 2021 Thursday, May 13, 2021. Motorists found gas pumps shrouded in plastic bags at tapped-out service stations across more than a dozen U.S. states Thursday while the operator of the nation’s largest gasoline pipeline reported making “substantial progress” in resolving the computer hack-induced shutdown responsible for the empty tanks. (AP Photo/Manuel Balce Ceneta) Gas shortages at the pumps have spread from the South, all but emptying stations in Washington, D.C., following a ransomware cyberattack that forced a shutdown of the nation’s largest gasoline pipeline. Though the pipeline operator paid a ransom, restoring service was taking time.