Episode 255

Whit Johnson reports on the chaos that unfolded at Dallas Love Field and Dallas-Fort Worth airports after air traffic controllers lost the ability to communicate with each other; Melissa Adan has the latest on the desperate search for a 2-year-old boy after torrential rain in Southern California triggered flash flooding that swept away a car in Barstow with a father and his son inside; David Muir shares how a AAA roadside service technician helping a father and his two young sons turned a road bump into a teachable moment for the boys – and earned World News Tonight's Person of the Week; and more on tonight's broadcast of World News Tonight with David Muir.