“This is a clear example of the FAA’s outdated infrastructure and underscores the urgent need to modernize our air traffic control systems,” the FAA said Saturday. “We’ve lost all radar and phone communications,” the controller in the Love Field Air Traffic Control tower said in audio recorded by LiveATC.net. “We got a hold of somebody.”On the other side of the city, controllers were busy shutting air traffic at DFW. Secretary of Transportation Sean Duffy is asking Congress to support a plan for a brand-new air traffic control system, which will cost billions of dollars. CNN’s Sarah Dewberry, Lorenzo Ferrigno and Elise Hammond contributed to this report, which was updated with more information from the FAA, American Airlines and Southwest Airlines.