Benjamin Katz, a WSJ reporter specializing in aviation, dives deep into the shocking collision between American Airlines flight 5342 and an Army helicopter, marking the U.S.'s deadliest aviation incident in over two decades. He reveals troubling safety concerns in D.C.'s crowded airspace and discusses the investigation's next steps. Katz also highlights the emotional aftermath of the tragedy, with tributes from the skating community for the young victims, and explains the complexities of air traffic control amid staffing shortages.