The world these figures inhabit is utterly silent.

WSJ: Separated at the Altar | Piero della Francesca in America | Frick Collection | By Karen Wilkin

Notably silent are the Democrats and media figures who demanded the scalp of a Bush White House aide, Scooter Libby, for leaks by another government official of the cover of a CIA operative who had left the field years earlier.

WSJ: John Yoo: Obama, Drones and Thomas Aquinas

During a debate in parliament on Thursday, Mr Cairns will cite figures showing 47% of people had a silent call in 2012.

BBC: Alun Cairns MP wants code of conduct on nuisance calls