Yeah not a good comparison I know!
FAA is responsible for airspace as well as the other issues.
God forbid if CASA were in charge of the airspace in Oz!
The world's biggest and busiest airspace system, but surprisingly their system works. Ours...well..ours is sorely encumbered by an inept authority and probably would be regarded as third world if we had any where near the traffic of the US!
Sheesh..its embarassing really