Heidelberg (dpa) - From an expert point of view, Sweden could be a model for non-smoker protection for Germany. There may now no longer be smoke in playgrounds. Different in Germany: "Brandenburg, Bremen, North Rhine-Westphalia and the Saarland as well as various municipalities prohibit smoking in playgrounds", reports Katrin Schaller, expert for tobacco control from the German Cancer Research Center in Heidelberg. From their point of view, however, a nationwide smoking ban would make sense.