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.

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

Transportation Secretary Sean Duffy admitted Wednesday that he changed his wife’s flight reservation to avoid making her take off from Newark Liberty International Airport — just hours after claiming the troubled New Jersey hub was safe for the public.