Diarmait Mac Giolla Chríost is Professor at the School of Welsh, Cardiff University, UK. He is an authority on linguistic minorities and language planning. His previous books include Language, Identity and Conflict: A Comparative Study of Language in Ethnic Conflict in Europe and Eurasia, The Irish Language in Ireland from Goídel to Globalisation, Language and the City, and Jailtacht: The Irish Language, Symbolic Power and Political Violence in Northern Ireland.