Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.

Transportation Secretary Sean Duffy said he has a plan to upgrade old air traffic control tech but warned more flight disruptions could come first.

The FAA is working on a short-term fix to the problems at Newark Airport that includes technical repairs and cutting flights to keep traffic manageable while dealing with a shortage of controllers.

It doesn’t mean the flights that operate are unsafe, but it does often translate to delays and cancellations that cascade through the system.  In some particularly busy patches of the sky, ...