Transportation Secretary Sean Duffy said he will work to curb chaos at Newark Liberty International Airport this week after Tuesday’s delays.  “We’re rolling a plan out on Thursday.

A deadly midair collision in January between a military helicopter and a commercial airliner, and several crashes since, have prompted officials to focus on fixing the nation’s outdated air traffic control system and hiring more controllers.

The transportation secretary is expected to reveal more details on a broader multibillion-dollar plan for long-overdue upgrades to the nation's air traffic control system at 1:30 p.m. Thursday.