I don't think that Betty Williams or Mairead Maguire could be described as extremists, John Hume and David Trimble were not at the extreme end of their respective sides in the conflict either. 'Folk dancers', well if you feel happy about that comment thats up to you.
Yes it's odd how afterwards there were no terrorists, they had been no civil war and yet a few politicians an arms length from the Armalites all got Nobel Prizes for solving a problem that never happened.
Extremists that lose are terrorists
If we aren't sure yet they are insurgents
If it ends with nobody winning and the leaders getting Nobel peace prizes (N.Ireland) then they were all just folk dancers that got out of hand.