The modern history of Northern Ireland has been dominated by one thing, "The Troubles" - a violent, bitter conflict, both political and religious, between those claiming to represent the predominantly Catholic nationalists and those claiming to represent the mainly Protestant unionists. But what Northern Ireland has now is not so much peace as an absence of conflict after the Good Friday Agreement was signed in 1998. Far from disappearing, the walls have grown. Instead of reconciliation, there is partition - an ill-tempered stalemate of separate identities and separated lives. Broadly speaking, the nationalists - also called Republicans - want Northern Ireland to be unified with the Republic of Ireland while the unionists want it to remain part of the United Kingdom, along with England, Wales and Scotland. This episode of the Walls of Shame series looks at life on both sides of the barriers between the warring communities.