Bonds have priced in something. LOL, I'm not sure much lower yields would be achievable. In edit, deflation would do it. <img src=http://bigcharts.marketwatch.com/charts/big.chart?symb=tyx&compidx=aaaaa%3A0&ma=0&maval=9&uf=0&lf=1&lf2=0&lf3=0&type=2&size=2&state=8&sid=11421&style=320&time=20&freq=2&nosettings=1&rand=449&mocktick=1&rand=5130>