They want to derail peace because they want to plunge Northern Ireland back into armed conflict.

John Irwin became one of the greatest peace workers in Northern Ireland.

A day like today is not a day for soundbites, really. But I feel the hand of history upon our shoulders. I really do.

Look at Northern Ireland and how long that is taking. Look at Sinai and Lebanon, and you see how difficult that is,

Loyalism, or Unionism, or Protestantism, or whatever you want to call it, in Northern Ireland - it operates not as a class system, but a caste system.

Anyone born and bred in Northern Ireland can't be too optimistic.