The trials involved children with blood clotting disorders, when families had often not consented to them taking part. The majority of the children who enrolled are now dead.

Documents also show that doctors in haemophilia centres across the country used blood products, even though they were widely known as likely to be contaminated. A shortage of blood products in the UK in the 1970s and 80s meant they were imported from the US. High-risk donors such as prisoners and drug addicts provided the plasma for the treatments that were infected with potentially fatal viruses including hepatitis C - which attacks the liver resulting in cirrhosis and cancer - and HIV. One blood product, known as Factor VIII, was seen to be highly effective for stopping bleeding but also widely known to be contaminated with viruses.

Wasn’t this scandal tied to Bill and Hillary years ago?