This report is from this week's CNBC's UK Exchange newsletter. Like what you see? You can subscribe here. Speeches from 80-year old politicians who last served in government more than a quarter of a century ago seldom have an impact. That makes the speech delivered nine days ago by George Robertson, defense secretary in former Prime Minister Tony Blair's first administration and later the 10th secretary-general of NATO, all the more extraordinary. Robertson, who in July 2024 was asked by the