Ms Lamont, for example, drew attention to Dennis Canavan's BBC interview in which he challenged the concept of a sterling zone.

BBC: The currency of debate at First Minister's Questions

Deborah Johnson, the show's production designer, was as challenged as the musicians in fine-tuning a concept.

WSJ: Three Brooklyn Stars Align at BAM

Under pressure, first from Labour and then from the Liberal Democrats, he repeatedly challenged his opponents to express their pride in the health service, its concept and creed.

BBC: First minister's questions: Health of a national treasure