NBC’s Kristen Welker grilled Sean Duffy on the repeated air traffic control outages at Newark Liberty Airport and the transportation secretary didn’t seem convinced that his agency has a handle on the ongoing crisis.

Sean Duffy said it is safe to fly, but major outages such as the ones in Newark could still pose “a risk to life” and must be swiftly resolved.

Transportation Secretary Sean Duffy plans to reduce the number of flights in and out of Newark Liberty International Airport for the “next several weeks.”