As Fannie Mae prepares to emulate the risk-sharing bond recently issued by Freddie Mac, concerns are arising that the government-sponsored enterprises are giving away a bit too much yield. Former GSE officials who have looked at Freddie Macs recent $500 million Structured Agency Credit Risk bond say the debt offering is a good investment for investors who are taking little risk while garnering a nice yield. According to Freddie Macs July offering circular on its STACR deal, the notes are divided...