vienna austrian chancellor christian kern social democrats ask facebook disclose identities behind sit say spread libel attempt clean smear campaign scandal ahead election oct. 15. kern pledge get bottom party link facebook page make unsusbtantiated allegations sebastian kurz head main opposition people party lead poll forthcoming parliamentary vote scandal already cost kern campaign manager job social democrats lawyers write facebook ireland tuesday say group must accord eu rule hand detail users operate sit show potentially libellous content kern kurz ... ask give us information persons behind ... page especially name email-addresses ip-addresses contact detail vienna-based law firm freimueller/obereder/pilz say due urgency matter ask answer within four days lawyers say letter obtain reuters facebook immediate comment social democrats deny connection two websites make unsubstantiated allegations 31-year-old foreign minister kurz austrian media report saturday former adviser social democrats dismiss summer originally behind sit keep operation social democrats also sue yet unknown operators facebook page libel fail comply austria media law forbid anonymous publish 0.8505 euros austria 's social democrats urge facebook unmask people behind smear campaign