The recent chronic delays and cancellations at New Jersey’s largest airport have highlighted the shortage of air traffic controllers and the aging equipment they use, which President Donald Trump's administration wants to replace. The Federal Aviation Administration is working on a short-term fix to the problems at the Newark airport that includes technical repairs and cutting flights while dealing with a shortage of controllers. But even before those problems, aviation was already in the spotlight ever since the deadly midair collision in January. That investigation continues while the U.S. Department of Transportation tries to make progress on the long-standing issues of not having enough air traffic controllers and relying on outdated equipment.