Just over 20 years ago an American scientist called Professor Joel Brind visited London in the hope that his findings of a causal link between abortion and breast cancer (ABC) would get a better hearing than in his native New York.

Few of his peers at home were interested in the results of a meta-analysis he and his team at Baruch College, City University of New York, had conducted into the alleged link using all the available international evidence. They didn’t care that Brind et al were able to demonstrate that a woman had a 30 per cent increased chance of developing breast cancer in later life if she underwent an abortion before giving birth to her first child, or that childbirth before the age of 35 protects women from developing the disease. Such truths were inconvenient.