Konstantinos Barbarousis and Nikolaos Michaloliakos are connect by their involvement in what group? 
Konstantinos Barbarousis: Konstantinos Barbarousis (Greek: Κωνσταντίνος Μπαρμπαρούσης) is a Greek politician and member of the Greek Parliament for the Golden Dawn. Golden Dawn (political party):  It is led by Nikolaos Michaloliakos.
i don't know