Gloomy tales <a href=" http://www.asavie.com/zenegra-bg.pptx ">zenegra tablets</a> NEW YORK, July 24 (Reuters) - Three former UBS AG bankers were sentenced to prison on Wednesday for deceiving U.S.municipalities by rigging bids to invest municipal bondproceeds, with the longest sentence at 27 months, a fraction ofwhat prosecutors had sought.