According to the improbably named Tim Hastie-Smith as reported in The Grauniad. I’ve always like moral vacuums myself, very effective on even ground in dirt on the deepest shag pile. The implication that more single faith schools rather than the obviously ideal number of none should be striven for is rather worrying, but seeing as we’re about to be econobombed back to the Stone Age I suppose it’s a moot point.