Thus if Matthews finds my book frustrating, I feel the same way about some aspects of his review. This is especially the case when it comes to the methodological points. Matthews raises valid issues, without recognising the explicit ways I address them in the book. Thus he comments that Mass-Observation (MO) diarists often ‘sound like a ready-made awkward squad’. Indeed they do, but as I say in the book’s introduction:
Churchill, even at this relatively young age, demonstrated great writing skill; he understood the way in which words could wield great power, create moods and stir passions. He was clearly aware, however, of a particular “mental flaw”; his tendency to allow the power of certain phrases to govern his principles, to use words that sounded good – with the power to win an audience – over those that reflected a genuine view or argument.With great self-awareness, he writes in this letter to his mother that “I am very much impressed with C. J. R. [Cecil Rhodes] having ... detected my mental flaw. I do not care so much for the principles I advocate as for the impression which my words produce and the reputation they win me ... I vy often yield to the temptation of adapting my facts to my phrases”. He adds, though, that “a keen sense of necessity or ... injustice would make me sincere”.
From the moment that the French defenses at Sedan and on the Meuse were broken at the end of the second week of May, only a rapid retreat to Amiens and the south could have saved the British and French Armies who had entered Belgium at the appeal of the Belgian King; but this strategic fact was not immediately realized. The French High Command hoped they would be able to close the gap, and the Armies of the north were under their orders. Moreover, a retirement of this kind would have involved almost certainly the destruction of the fine Belgian Army of over 20 divisions and the abandonment of the whole of Belgium. Therefore, when the force and scope of the German penetration were realized and when a new French Generalissimo, General Weygand, assumed command in place of General Gamelin, an effort was made by the French and British Armies in Belgium to keep on holding the right hand of the Belgians and to give their own right hand to a newly created French Army which was to have advanced across the Somme in great strength to grasp it.
Reference:  Speech to a joint session of the United States Congress, Washington, D.C. (December 26, 1941); reported in Winston S. Churchill: His Complete Speeches, 1897–1963, ed. Robert Rhodes James (1974), vol. 6, p. 6541. The Congressional Record reports that this speech was followed by "Prolonged applause, the Members of the Senate and their guests rising"; Congressional Record, vol. 87, p. 10119.
Rather, he gave it in the House of Commons, beginning at 3.40 pm and sitting down at 4.14. By contrast with some later occasions – notably his ‘finest hour’ speech of 18 June – he did not repeat it over the airwaves that evening. The thought simply does not seem to have occurred to him or to anyone else. Instead, a BBC announcer read sections of it during the nightly news. You have, of course, heard him delivering it, but he did not make that recording until 1949, when he was persuaded to do so for the benefit of posterity.

LITERARY TRAVELER, February 2011 – In 1940, from deep beneath the buildings of Whitehall in London, in an underground complex known as the Cabinet War Rooms, Winston Churchill saved Britain. This secret cavern became the nerve centre of the war. Churchill would even sleep here on occasions. In Room 60 of this political bunker, he made his historic radio speeches to the nation, speeches which gave the people the strength and resolve to win the war.
While shaving one morning in 1953, Churchill remarked to John Colville, “Today is the 24th of January. It’s the day my father died. It’s the day I shall die, too.” He repeated this prediction to his son-in-law Christopher Soames shortly after his ninetieth birthday, in 1964. A few weeks later, on January 10, 1965, Churchill lapsed into a coma. Earlier that evening, during the nightly ritual of brandy and cigars, he had said to Soames, “It has been a grand journey, well worth making.” He paused and added, “once.”