Guardian: “Twenty years have been lost,” lamented Nereo Laroni this week. The 66-year-old socialist was once mayor of Venice. In 1987, he was ousted after a battle with opponents of the mobile barriers that are now, after numerous delays, being constructed as part of what is known as Project Moses. “On that occasion, I said: ‘I declare for future memory that if anything irreparable should happen to the city, the guilty should be looked for among those who today have impeded the start of …