[Dan Evans]

As a pilot, I have to say not no, but hell no, to this idea. We have enough problems in controlled airspace with saturation and now NASA wants to put something that violates the whole concept of "see and avoid" in the mix?

The "see-and-avoid" principle applies to highway traffic and it results in 40,000 deaths a year. If we need to have cargo moved across country I would prefer it be done by a drone at 40,000 feet under GPS guidance and computer control than by some meth-crazed trucker five feet off my bumper.

(Apologies in advance to meth-crazed truckers)

[Archangelsk]

Your assuming that aviation will ever have the lift capability that surface trucking has. As far as GPS guidance goes, it took a gazillion years (pardon my exageration) to certify WAAS and I think it will take a quintillion more to certify GPS, WAAS, and LAAS guidance.