Happy Dog wrote:

In the case of the DC ADIZ, I believe it was created to restrict the
number of targets/flights within its boundaries, so that unidentified
primary radar targets will be easier to spot. Perhaps 'congestion'
would have been a more accurate word than 'clutter.'

Where is your evidence that this is the reason behind the ADIZ?

During the 9/11 investigations, several security people stated that that was the
case. They wanted to reduce the number of radar targets in the area to something
manageable if they had to intercept. A fair amount of the hearingd were
broadcast on NPR last Spring.

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