JUST IN: Transportation Secretary Sean Duffy announces U.S. airspace has reopened as of 8:15 p.m. ET after a nationwide ground stop leaves travelers stranded.

JUST IN: Transportation Secretary Sean Duffy announces U.S. airspace has reopened as of 8:15 p.m. ET after a nationwide ground stop leaves travelers stranded. Officials have identified the problem and restored air traffic control operations, but Duffy warns delays will continue. “It’s going to be …