Sightseeing Britons and G.I.s jostled in the coppery sunlight outside No. 10 Downing Street and the Houses of Parliament. In the jampacked central lobby of the House of Commons, police had to clear a passage for the arriving members. In the green-carpeted Chamber, Laborites milled about like schoolboys starting the fall term. There was a new bar below, on a level with the terrace overlooking the Thames, but on opening day it was deserted.
Seventy-year-old Winston Churchill regarded the hubbub with a placid eye. Back from a Mediterranean holiday with 14 new watercolors and a coat of tan, the wartime Prime...