Last night The Times broke the news that Tom O'Carroll, the public face of the Paedophile Information Exchange around 1980, had joined the Labour Party.
To Labour's credit, he was suspended today.
But his brief presence was in line with the Corbynistas' attempt to return Labour to the early 1980s.
When I worked in Birmingham in 1981 and 1982 it was possible to find literature from the PIE among that from other municipally approved good causes in the city's central library.
The idea that the professional left was the scourge of child abusers did not arise until some years later.