It was pretty much all the money Bozena Oracz had after a working life as an accountant: the equivalent of $15,000. She placed it in a fund investing in gold, with the hope of paying for her daughter's studies and getting treatment for a bad knee.Those dreams were dashed when she discovered she had fallen victim to an elaborate fraud scheme that has left thousands of Poles, many of them elderly, facing financial ruin.The so-called Amber Gold affair is one of the biggest financial scandals to hit Poland since the fall of communism in 1989. The extent of wrongdoing is still murky, but it seems to have some elements of a pyramid scheme, meaning the financial institutionused funds from new clients to pay off older clients rather than investing them.Consumed with...