(ANSA) - Milan, October 28 - The "most worrying" risk concerning Expo once it has officially ended on October 31 is "the idea that it might become a cathedral in the desert", anti-corruption chief Raffaele Cantone said Wednesday.
    "To sully the global image of Expo with the idea that nothing is happening: that would be the worst thing," Cantone argued.
    "But I'm optimistic and I hope this doesn't happen," he added. "It would be a shame after such hard work".