An art museum in Italy has hung a cheap copy of a painting with a sign that reads "stolen" on its gallery wall to make a point. The original painting, "Vase of Flowers," is an 18th century masterpiece by the Dutch painter Jan van Huysum. It was part of the Pitti Palace collection in Florence, but the painting was stolen during WWII by retreating German troops. "Vase of Flowers" found its way into the hands of a German family, who still have it. Now, Italy wants it back, but they refuse to return it.