Another waste of Taxpayer money!
Does anybody believe that ITT and 15 sub-contractors will be able accomplish the task of producing an air traffic control system without the prerequisite finger pointing, "milking the cow", etc, etc? Forget about "Ontime delivery" or "Within Budget", I can't even guess if such a system would ever WORK with so many cooks in the kitchen.
And what is this crap about getting rid of the existing radar system...anyone ever hear the platitude "Don't put all your eggs in one basket"? (Especially when the basket is being provided by government contractors?) Never mind Chinese antisatellite missles, ever hear of sunspot interference or have you tried to get satellite TV working in a blinding rainstorm, let alone a Buffalo, NY snowstorm!!!!
I assume the system will be running on M$ Windoze... "Excuse me ladies and gentlemen, there will be a slight decrease in altitude while I try to re-boot the guidance system server...looks like one of you brought in a virus when you connected your laptop to our new in-flight wireless internet service." (In the background you hear, "What do you mean you can't remember the user name and password!!")
My suggestion: completely parallel systems, no rollover to new GPS systems until they have been in place, operating for 5 years with 99.99999% uptime and equal or better accuracy. Require 20% retention bond, satisfied only when uptime and accuracy goals are accomplished.
Fix the existing radar system FIRST, all it needs are new electronics that aren't based on Vacuum Tubes and new computers that use post 2000 A.D. technology. Put in a contract clause that says that all microprocessor based electronic parts MUST be readiliy available for a minimum of 50 years.
Oh and order a few dozen spare GPS satellites (and boosters) so the system can be fixed in the future. Never know when you might find a few "chinks in the armor".
And one last thing, buy stock in the Railroads and Ocean liners.