Bridge over troubled voters.
Last year we commissioned polling that showed 57% of Scots wanted to repair the existing Forth Road Bridge, not build a new one, with just 34% in favour of the SNP plans.
Leaving aside the environmental issues, the costs are simply incomparable. For an absolute maximum of £122m the cables on the existing bridge could be fixed, and this would allow us to save billions.
But congestion, they say, what about the congestion? And it's true, recabling would require some partial closures. But now we know what extraordinary congestion would come from building the new bridge: there would be contraflows for a "substantial part" of the three and a half years it would take to redo the crucial Ferrytoll roundabout where the A90 approaches the bridges at the north end.
That's just one part of the associated work, if perhaps the most complicated, and it's yet another nail in the coffin of this absurd and deeply unpopular project.