National School Lunch Week is underway this week. It’s an annual event, of course, but this year I think we have a lot to celebrate because more and more people are coming to understand how important it is to provide America’s school children with a healthy nutrition environment at school. In fact, as I look around, I see encouraging developments in many areas, but none more so than the growing number of schools that have decided to take on USDA’s HealthierUS School Challenge.