Senate Commerce Committee chair Maria Cantwell said the panel plans to review the cause of a Federal Aviation Administration computer system outage that sparked a nationwide ground stop and delayed or canceled more than 4,000 U.S. flights.
"We will be looking into what caused this outage and how redundancy plays a role in preventing future outages. The public needs a resilient air transportation system," Cantwell said. The ground stop was lifted shortly before 9 a.m. ET. (Reporting by David Shepardson)