Here are a couple of links re the two major bombings of Iraq in 2001. 1st one was Feb & 2nd one August (have tried to locate press report that specifically mentioned systems installed by Chinese contractors but haven't found it yet)
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1)
[link|http://www.whitehouse.gov/news/releases/2001/02/20010216-2.html|Ari Fleischer Speaks on US bombing of radar facilities - Feb 16 2001]
Excerpts ...The President authorized the strike because of the risk posed to our aircraft. All coalition aircraft have returned safely.
Q Was this planned, Ari, or was this a spontaneous --
MR. FLEISCHER: The President authorized it yesterday.
Q When did he authorize it?
MR. FLEISCHER: Yesterday.
Q Did something happen to provoke this, Ari, did some incident happen to provoke this?
MR. FLEISCHER: It was the existence of radar facilities that posed a threat to our aircraft, that identified our aircraft. There is a simultaneous briefing going on at the Pentagon as we speak. The Pentagon is briefing at 2:30 p.m. and will provide additional detailed information about the strikes and about the targets.
Q For the President to have specifically approved it indicates it's more than just a routine thing, though, because rules of engagement --
MR. FLEISCHER: No, it is routine. In this case, the aircraft would be on patrol in the southern no-fly zone, and that's why it required the President's authorization. That has happened before; that is, unfortunately, routine.
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2)
[link|http://www.wsws.org/articles/2001/aug2001/iraq-a17.shtml|October Attacks on longrange Radar facilities]
A short extract that hits the point ...
"The intensified bombing of Iraq is thus a form of US saber-rattling, directed not only against Saddam Hussein but also at the European powers that are challenging American hegemony in the oil-rich region. Russia may be able to block US plans for more effective sanctions, China may supply high-tech gear to Baghdad, France and Germany may have well-advanced plans for economic penetration of Iraq, but the United States is seeking to serve notice that it remains the decisive military power in the Gulf."
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My speculation (no hard evidence) is that US may have been destroying a similar system to the PCLS one said to have been used in Serbia.
Cheers Doug