Paul McCartney has once again crept upon our shores. He was, of course, vanguard in the original “British Invasion”, which occurred in early 1964. Now, an invasion is something to be resisted, to be fought off, to be repelled. Sadly—quite, quite sadly—we had no Winston Churchill on our shores to boost our morale with stirring words like these: 'We shall go on to the end, we shall fight in New York, we shall fight on the seas and oceans, we shall fight with growing confidence and growing strength in the air, we shall defend our Culture, whatever the cost may...