I remember the Perfect Blue Sky on September 11

September 11, 2001 was a routine day until the Kids Program that my youngest son (then not quite 3) was watching went off the air.
Shortly thereafter I got a call from a friend in Albany (New York) who had heard the news of the first plane crash.
It was news to me and we were not quite sure what to make of it.
I got off the phone and as I could not access news websites from the New York area, went scrambling for bits of information via the Washington Post site and I think European sites as well.
A beautiful sunny day had turned tragic.
As I put the same son (now not quite 10) on the bus this morning, the sky was gray and I remembered the perfect blue skies of 7 years ago.