Context:

Described as 'the Le Carré novel' and 'the ultimate 1974 novel' published in summer 1974, featuring themes of moles and espionage that reflected the paranoid atmosphere of the time

Context:

Referenced when discussing Bill Hayden, the Labour leader replaced by Bob Hawke. The hosts note that 'Bill Hayden' is also the name of a character in le Carré's spy novel.