FAA ground stop lifted: Why were US flights grounded, and what’s next?

In brief

Al JazeeraPassengers face airport delays as US flights resume after nationwide ground stop BBCFAA lifts nationwide ground stop that disrupted thousands of flights, White House says no indication of "nefarious act" CBS NewsAirport chaos continues after US ground stop lifted – as it happened The GuardianRubio: ‘No need’ for further strikes on Iran…