I fail to see the connection between an inadvertent DC ADIZ violation by a
Cessna 150 and the need to make the ADIZ permanent. If the presence of the
ADIZ had enabled the detection, interception, and downing of one or more
hijacked airliners, then I might see its usefulness. If many GA pilots
violate the ADIZ, and it doesn't prevent any terrorist attacks, then doesn't
that indicate the ADIZ should be eliminated?