Should Newark Airport close until air traffic control upgrades are made? Experts and officials debate safety and the economic impact.

Over the past two weeks, several equipment outages at the Philadelphia-based air traffic control center that guides planes to and from Newark Liberty International Airport, have raised questions on just how safe it is to fly at one of the nation’s busiest airports.

Another radar outage at the Philadelphia TRACON has triggered flight disruptions at Newark airport, marking the third failure in two weeks.