'Root cause’ of nationwide ground stop is unknown, FAA says
A CNBC article reports that the root cause of the November 13, 2026 nationwide ground stop halting U.S. flight departures remains unknown, though officials point to router and networking equipment from Cisco and L3Harris. Transportation Secretary Sean Duffy asks Congress for $50 billion for an air travel overhaul, while FAA Administrator Bryan Bedford cites unexplained instability and L3Harris says on X it is aiding the investigation.
