Before Scott Pelley was fired from 60 Minutes last week, he accused CBS’s editor-in-chief of “murdering” the programme he had served for over two decades. For a show that once defined hard-edged journalism, his dismissal raises questions about what institutional independence means. The split followed a tense staff meeting in which Pelley confronted the show’s new executive producer. In a statement after his firing, Pelley said the organisation was becoming more policitised and tried to get him...