"Greg Farris" wrote in message
...
Technologically, we're just one step away. As soon as clearances are
entered directly into the aircraft's navigation computer, via datalink,
instezad of having to be punched in by the crew, fully automatic
operation will be possible. This will reduce workload for controllers,
who will have direct command,and not have to waste time with
unpredictable human elements.

Why would there be controllers? If the system is more automated, the
controllers could be eliminated also.