The mordern world and the relations in it are by far more complicated than a cowboy wisdom. Many things may be accomplished in these world by mere word: learn from the criminals: they always warn (and get their objective) before inflicting a real damage. We can learn from the Iranians: the threats work. And maybe it's our turn to make them worry...
German authorities accused of playing down refugee shelter sex crime reports (Reuters)
from the article: Thus spoke the dairy farmer