Richard Herring wrote:


I'm curious here. How does GPS "pay for itself"?

By the time and money saved in commercial activities. Think of all those
Navistar Systems in cars that would not have been produced or sold had
there not been a GPS. The additional safety in air traffic control is
worth multi-million dollars in time and lives saved. It is now possible
to land a plane safely in pea-soup fog using GPS.

Rescue operations have save thousands of lives because the location of
lost persons have been exactly known.

In military circles we can now do truly precision bombing thus saving or
ordinance used to cream a target. The uses of GPS in military operations
more than justifies any govt outlay for it. Two words: National Defense.

And a thousand and one other uses.

Bob Kolker