The FAA oversees all portions of pilot licensing, airplane manufacture, airplane service, operations, traffic control, idiots with drones, etc, for general and

The FAA oversees all portions of pilot licensing, airplane manufacture, airplane service, operations, traffic control, idiots with drones, etc, for general and commercial aviation in the entire country. Certifying new commercial models is but a small portion of what they do. By number of employees and budget I would bet that ATC is actually their biggest responsibility. That's not to say that they should just rubber stamp all that...