September 11 legacy: Unresolved investigation questions and aviation industry impact

Twenty-five years after the September 11 terrorist attacks, questions persist regarding the U.S. government's investigation into potential links between the hijackers and the Kingdom of Saudi Arabia. Internal FBI inquiries, such as Operation Encore, were reportedly established to examine Saudi involvement, yet these probes were kept from Congressional oversight and eventually shut down in 2016 despite evidence gathered regarding officials in Southern California and at the Saudi embassy in Washington.

In the aviation sector, executives from Air Canada recount the immediate aftermath of the attacks, which led to the grounding of hundreds of aircraft and a significant decline in air travel. Leaders navigated unprecedented challenges, including securing special government clearance to return to Canada and managing the sudden silence in transatlantic radio communications as airspace was restricted.