I'm not sure if this is what you are looking for exactly, but there is some audio of the interview here:
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Audio: Pakistani journalist Hamid Mir on AQs alleged nuclear plot
http://hotair.com/archives/2006/09/21/audio-pakistani-journalist-hamid-mir-on-aqs-alleged-nuclear-plot/
Explosion Causes Center City Evacuations (Philadelphia - 9/21/06)
PHILADELPHIA - September 21, 2006 - An underground explosion in Center City has led to the evacuation of several buildings.
It happened around 1:30pm near 16th and Chestnut streets.
Apparently, there was an underground cable fault when PECO was attempting to switch to a different circuit. this resulted in some type of malfunction.
So far, several high rises (Center Square, Liberty One and Liberty Two) have been evacuated and there are thousands of people on the street.
Power has been lost to a number of customers and there's no word when power will be restored. PECO crews are on location trying to fix the problem.