At one level, the Prime Minister's "wreckers" comment was a down-payment on an insurance policy against that depressing eventuality. And before the Tories complain that Mr Blair is demeaning political debate, they should recall the way they used precisely the same technique in 1992, when the economy was in trouble, to say that Labour would run it yet further into the ground. That was the purpose of the Tories' poster, "Labour's Double Whammy". Central Office strategists should recall that campaign, hang their heads in shame, and say nothing about the latest verbal fisticuffs.