By Dave Lindorff
This past Thursday evening, not having done my usual run because of the heat, I waited until later when things had cooled down a bit. It was still quite humid and even faintly misty and not wanting to get all sweaty I opted to walk the four mile circle through the exurb north of Philadelphia where we live.
It was totally quiet as I walked the paved streets past the houses on one-acre lots with their neatly mowed lawns and sculpted flower patches.
At first