A postscript to the report here from back in 2011 that ran under the headline "Michelle Obama's Food Desert Myth" comes from NPR, which reports on a professor who:
recently surveyed residents of one low-income community in Philadelphia before and after the opening of a glistening new supermarket brimming with fresh produce. What they're finding, Matthews says, is a bit surprising: "We don't find any difference at all. ... We see no effect of the store on fruit and vegetable consumption."
You'd think that might trigger a reassessment of the $275 million in taxpayer subsidies that Mrs. Obama and Treasury Secretary Timothy Geithner announced during their visit to the Philadelphia supermarket.