I've not always been the greatest fan of Sinn Féin, but Martin McGuinness really deserves full credit for saying this:
"I will stand for all democrats against their attempts to plunge us back into conflict; to see soldiers on the streets; to see more checkpoints; to see houses being raided and to see people being dragged back to interrogation centres. Those days are over. They can never come back again."
It is a step-change for Irish Republicans to take and it's not something that I think they could have been reasonably expected to say straight-off-the-bat.
Sinn Féin have come under a fair amount of criticism for not having said this sooner than they did after Saturday nights' murders. I'd suggest that this is unfair.
To be as unequivocal as Sinn Féin leaders have been would have involved a degree of consultation - a squaring of a few circles. Once again, it shows that the demand for a reflexive statement can often result in a poorer outcome.
It's early days, but the politicians in Northern Ireland look like they are responding well to this situation. For once, the focus has been on the undeserving victims - not the yesbuttery that often characterises debate - even on Slugger's heavily moderated comment threads.