In the long course of Dr Kass’s career he has often officiated at international events, chaired symposia and conference sessions, and organised and lead international events and workshops. As an experienced and seasoned speaker, he has frequently been invited to speak at plenary sessions and as keynote speaker. He has also participated in panel discussions and round-table debates at conferences, as well as engaged in interviews with the press and questions and answer programmes on live radio on various topics across his broad area of expertise.