The FAA’s nationwide ground stop is exposing a major weakness in America’s aviation system, and Transportation Secretary Sean Duffy says decades-old technology

The FAA’s nationwide ground stop is exposing a major weakness in America’s aviation system, and Transportation Secretary Sean Duffy says decades-old technology is to blame. Pressed by Fox News’ @​pdoocy on what caused the widespread outage, Duffy points to aging switches, routers, and copper lines …