Everything seems gentlemanly and grown-up at Sting's Tuscan estate, five hundred feet above sea level, a half-hour's drive from the Italian museum-piece city of Florence. In a storey building converted into a studio, the Police members have been rehearsing for the past three weeks, following an initial stint in Canada, for their forthcoming world tour. The very existence of this in itself is a remarkable turn of events: The first time that the innovative and immensely successful trio of Sting, Andy Summers and Stewart Copeland has played together professionally in 23 years...