"Now on assignment in Northern Ireland. European correspondent Bridget Brennan went to take a look at an uncompromising new generation of Republican terrorists calling themselves. The new IRA the group has claimed responsibility for a car bomb and a string of hijackings in recent weeks. So what motivates them when so many across the island of Ireland a craving a lasting peace? Bridget. Brennan spoke to a young Northern Irish academic who spent the better part of a decade finding out peace in Ireland peace across these islands is a precious thing is the thing that we in the U K, this Bain fees and constant debate about what brings it could do to that hard fought pace processing Ireland and Northern Ireland. And there's a phrase you he quite a lot win talk of Briggs and Bill I in borders crops up, and it goes something like we all remember the dark days of the troubles in Northern Ireland. I actually don't remember much about the troubles. I was in primary school. When the Good Friday agreement was signed. But when I was in Northern Ireland recently, I realized of course, it spoon. Deep into the sake of people about my age there, even if they were only young when the conflict stopped. It's the reason why I sought out Dr Murray mcglinchey, she was absolutely fascinating to speak to she's a celebrated young Akkad from Bill Fosse. She's become totally absorbed in the history of her home. I remember when I was starting at we have family in Dublin, I left here in Belfast, and we were returning after a visit to family in Dublin we were returning to Belfast and our busts my moment. I was on a bus that was hijacked when we were taken off at gunpoint and the bus was used to block the road. It was at the time of the Drumcree disturbances. And so things like that really did have an impact and left me with a lot of questions about what was going on around me. And I wanted to make sense of it. And then and ladder years in two thousand nine I went along to a meeting. And Kleinert monastery that Chen fan were holding. And that was a public meeting about whether or not to join the PS, and they were trying to persuade the community to join give their support to the PSA. And I and I sat in the actual church of the monastery listening to this. And I saw you know, some there was a bit of a break owed at the back of people saying that their son didn't die for this or or just express opposition to the direction. What Xinfei and we're moving and. You know, it really picked my interest. Morita ease the perfect person to speak to if you want to know more about the so called dissident Republicans, these a hardline Republicans scattered across the island and Maria did about seven years of research into them republicanism is historically difficult to reach community. You know, we can't simply consult are a meeting minutes, and it was very important to me to actually quite and speak to Republicans on the grind. So I interviewed ninety three hundred Ireland, and I also went to feud some current prisoners Mugabe prison, and so it was a long process, and it was a times of difficult process because it did bring the attentions of the security services by that. She means you stopped and searched while riding her new book unfinished business, she been hanging out at some Republican events which caught the eye of some of the security services and her work also to inside prisons to talk to dissident Republicans who. We've always rejected the peace agreement, and I love the process of going around and really getting into the psyche of what people think, and I one of those moments probably was going to end demagoguery prison at which is based just outside Lisburn here in the north of Ireland. And that was my first time in a prison. And I went in not you know, as an academic. But I went in with the other families on a regular visit to see the prisoners. And what was remarkable? There was that the families of these prisoners had actually given up their visit for me to win. Now, given they only get a limited number of those felt that was quite remarkable. So when I went through the same process that the families and friends go in visiting their relatives. And so the process involved at one point sitting dying the drug dogs walk in arraigned to which all seemed very surreal and before I was then brought onto the Republican Landon in the prison. I asked Marie sir of couse about Brexit him with a she thinks it's been a motivator for these groups in some of these hardline Republican groups like the new IRA. But I mean when you look at what people term dissident Republicans, there are techy letting traditional Republican ideology and principles. So if. You stand around gravesites at art in today at some of their events, you'll hear the Republican ideology and message that you would have heard in the seventies or eighties from the mainstream shin Fiene movement. So for them it's very much about traditional republicanism. And we've even them we've heard speculation recently about Brexit. And are we seeing the increase of republicanism in the wake of Brexit? And I mean, Republicans are very clear that their position isn't a response or reaction to Brexit. But rather Brexit is seen as an opportunity to be exploited. Scary thought Europe. Correspondent Bridget Brennan with that report."