Back in the days when nitwitted Irish governments believed the state had found the secret to permanent wealth, Sinn Féin was promised the Clones Sheugh, a rebuilding of part of the line of the Ulster Canal. For reasons that are not clear to me, the reason for the project was concealed by a lot of nonsense about economic regeneration.
Sinn Féin still want their sheugh, and have continually asked questions about it. They own the Northern Ireland department currently responsible for waterways. And they have, I believe, forced its southern counterpart to pretend it will deliver the sheugh. Admittedly it’s really just going to dredge the River Finn — Saunderson’s Sheugh — and call it the Ulster Canal, which is better and cheaper than doing anything about the real Ulster Canal, but we might wonder why the current southern minister, Heather Humphreys, a TD for the Cavan-Monaghan constituency wherein Clones lies, is quite so keen on sheughery.
Perhaps Wikipedia can help.
Cavan-Monaghan constituency, general election 2011
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Irish waterways history 