“… So-called pension obligation bonds seek to infuse new dollars into struggling pension funds and over time take advantage of the margin between interest rates and the traditional returns on pension investments. … Sen. Mark Kolterman of Seward said he thinks the bonds could be risky, especially should the stock market see another big shock. 'They do have a big problem,' he said of OPS. 'But I don’t think this is the answer. There is no magic bullet here.' …”