bilbao -- several political leaders yesterday harshly criticized the remarks of pnv -lsb- basque nationalist party -rsb- chairman xabier arzalluz , who referred on aberri eguna -lsb- basque fatherland day -rsb- to those who `` talk a great deal about eta -lsb- basque homeland and liberty -rsb- , when they have headings and articles in their constitution , designed for reds and separatists , in which they entrust their fatherland 's unity to the army , weapons , and violence . ''