Taking the fight to the Scottish National Party with the spectre of dead babies is the nuclear option of scare tactics. No fear will strike parents so close to the bone as this threat will. Every parent – every decent human being – who reads it will get it. They will understand the warning: That they will be complicit in the deaths of defenceless little babies if they lend their support, their votes, to the SNP and to the independence movement. Like the dull ring of a funeral bell, the message is unmistakable.