One answer is horror: there’s a compelling case for asking the British public whether the Brexit that is negotiated is what they actually want — not least because the dishonest and contradictory messages from the Leave campaign mean that many who voted Leave will find a large gap between the deal that is offered and what they thought they had voted for.
But an Exit From Brexit means healing the deep divisions that it has exposed, not just a narrow vote the other way in a referendum. That means bringing across many of those who voted Leave, and engaging with why they voted that way. Many voted Leave out of fear, and they still have reason to be afraid. That is particularly the case in the Labour heartlands.
On 26 February, Jeremy Corbyn gave a speech saying that Labour favoured remaining in customs union with the EU. The week leading up to that was dominated by said an absurd, untrue, and ultimately retracted, allegation that he had spied for Czechoslovakia. It seems like a testing of absurdity on the way to a wise position on Europe.
In the foreground was the media storm which ended with Jeremy Corbyn winning an apology and payout from Tory MP Ben Bradley over his “Wholly untrue communist spy tweet”.
This is so absurd that the question it raises is “Why on earth did anyone believe it?”
In the middle of the storm, one comment caught my ear — Jeremy Corbyn saying that he had spoken with Czech diplomats because he wanted to hear both sides in the Cold War. An individual backbench MP won’t have had a huge effect, but advocating peace rather than war, and talking with the other side rather than demonising them, sounds like the conduct of a wise statesman.
So, why has this story blown up now? There is a political answer, and a below-the-surface one.