I went to DigitalGlobe a few minutes ago to follow up on a Metroblogger's report that they had satellite imagery of New Orleans and the surrounding area available. I'm posting a link below, to a satellite image taken Wednesday -- the height of the flooding in the city -- and some commentary to help you understand what you're seeing. Here's the short version: The city's historic districts -- its heart, its soul, and its collective memory, not to menti