On twitter Friday, the National Air Traffic Controllers Association pleading for travelers to call their members of congress to let them know that the government shutdown needs to end now. According to the NATCA, the number of air controllers are already at a 30-year low, which leaves the training and hiring of new air traffic controllers impacted if the shutdown is long-term. Schilling says, “If it’s months, certainly there can be some degradation in the ability to get controllers on the scopes and get them working. If it’s years, it certainly would have an impact.”