The premier of the south-western German state of Baden-Württemberg, Winfried Kretschmann, has warned parties against adopting the policies of the right-wing Alternative for Germany (AfD), which is seeing its support grow in the polls. "In the fight against the extreme, we must not become extreme ourselves. We must not counter their drivel with more drivel, but with reason and clear arguments," the Green politician told dpa in Stuttgart. It is wrong to believe that there is a single recipe to fig