I really like visualization of statistical information, but sometimes you need a reality check. People with local information really can add value. For example, I apparently live a few blocks away from the edge of a "food desert" according to the USDA. I know this because the local paper has been interviewing people about this, and they're really confused, as there are multiple super-markets all around the edge of the "desert" (granted, only one is really affordable if you're on a budget). If you're curious where the nearest food desert is, you can look for yourself, the USDA has an interactive map up!