Deputy Premier and Foreign Minister Antonio Tajani said Thursday that the homicide of French nationalist militant Quentin Deranque, allegedly by hard leftist youths, has "no borders" after French President Emmanuel Macron told Premier Giorgia Meloni to butt out following her condemnation of the killing.     "The killing of a young French activist is a serious matter that concerns everyone, an episode that must be condemned without hesitation, all the more because it was in a university setting,"