[CuriouslyC]

Privatizing something does not magically make it more efficient. The market tends to produce more efficient solutions than government because it tries many different approaches simultaneously, and they compete against each other. This probably won't work for air traffic control because it will be so regulated that innovation will be impossible (if innovation was even possible there in the first place). Furthermore, I doubt that the air traffic control market will be highly competitive - regulation will probably drive the market to cartel conditions.

In all likelihood this will result in a small price decrease coupled with degraded service.