Quote:
Originally Posted by Laz
As for satellite surveillance I am not sure that it is as good as land based systems for everything.
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They are and they aren't. Satellite systems see things one way, land-based systems see them differently. Ideally, you want both, AND you want airborne fast movers (like the late, lamented Blackbird) to fill in the gaps.
What worries me is that this is a relatively low-tech system. The kinds of things you'd want to replace it with are not a whole lot fancier. The fact that they aren't replacing them at all, or at least not saying anything about replacements, bothers me.