The deadly collision between Air Canada Express flight 8646 and a Port Authority firefighting vehicle on the runway at LaGuardia Airport on Sunday night has left two pilots dead and 41 people injured. The incident has raised questions about the interplay between air traffic control and the flight, with a high-speed collision occurring at 104 miles per hour. The National Transportation Safety Board (NTSB) and the Transportation Safety Board of Canada are investigating the crash, with officials expected on the ground Monday. The LaGuardia control tower, rated as one of the FAA's highest-level facilities, is being probed for its role in the incident. The crash has also sparked discussions about the overworked and under-rested air traffic controllers, who are often working six-day weeks of 10-hour shifts. The incident has also led to the deployment of Immigration and Customs Enforcement (ICE) agents to airports across the country, without masks, to assist with security during the partial government shutdown. The TSA's budget, funded in part by a passenger fee, is also under scrutiny, as TSA employees remain on the job during the shutdown without pay. The incident has also raised concerns about the safety of air travel and the need for better oversight and regulation of the aviation system.