One of the architects of the Good Friday Agreement, David Trimble, is threatening legal action against a controversial part of the Brexit withdrawal agreement.
Twenty years since the Good Friday Agreement, it remains easier to rely on old animosities than lead people towards peace.
The Good Friday settlement has kept the peace, but the system is plagued by built-in instability.
Everyone is assuming that the DUP would do a deal with the Tories after the election if the option arose. Everyone may be wrong.