The infamy of the American diet hides its progressive side. From the presence of extra wide wheelchairs at the airport on your arrival, the infamy of the fast-food nation conceals the fact that in the Western world it is doing more than many to tackle the big issues.Last week’s historic visit by the Pope leaves, among many positives, the sense that the notoriously selfish superpower can open its heart to the troubles of others: consume less and give more.There is no need to say more about greed for carbs or fat in highly processed foods, it is too well documented. Yet what is not is the fact that the US is ahead of Europe in addressing its problems seriously. For example, there has been a huge drop in pre-school age obesity rates. This is partly due to the Women, Infants and Childre