By Tom Purcell

It’s possibly the only scandal we are allowed to discuss.

In 2015 the peaceful and tiny world of competitive curling was rocked by a broom kerfuffle that sent the ancient sport reeling.

Curling — which is currently getting its quadrennial global TV exposure at the Winter Olympics in Beijing — is a civilized, nonviolent sport invented in 16th Scotland.

As described by Britannica, in curling two teams of four players compete by sliding heavy stones — concave on t...