Mr Albert also stresses that the reasons why teenagers get pregnant and carry a baby to term are much more complicated than the content of sex education lessons - and notes that many young people take no notice of what they are taught at school.

BBC: NEWS | Americas | Chastity pressed on US teens

Yet the Baby Bells dislike this market-friendly approach: too complicated and not cost-effective, they say.

ECONOMIST: Hold the line

Its absurdly complicated tax system raises very little, and the ageing of its baby-boomers will push its vast entitlement programmes towards bankruptcy.

ECONOMIST: Debt and politics in America and Europe