Newark Liberty Airport continues to struggle, as runway shortages and ground stop programs combine with equipment troubles and air traffic controller shortages.  

A report this week from the New York Times found that as few as three air traffic controllers were working Monday, eleven fewer than the target number of 14 set by the Federal Aviation Administration and the air traffic controllers union.  

US Transportation Secretary Sean Duffy says the agency will reduce air traffic at the airport while they try to address safety concerns.  

Michael McCormick has worked as a director of terminal operations, a manager at one of the air traffic control centers, and an air traffic controller. He joined WNYC's Morning Edition host Michael Hill to talk through the situation.