Delays and cancellations at Newark Airport have raised questions about whether a shortage of air traffic controllers and technological issues could fuel travel disruptions elsewhere.

Transportation Secretary Sean Duffy plans to reduce the number of flights in and out of the Newark Liberty International Airport for the “next several weeks,” as New Jersey's largest airport struggles with radar outages and other issues,

Technology and staffing problems have plagued the airport, one of the nation’s busiest hubs. Officials say they are trying to resolve the issues, but concerns remain.