This should be the last in a series of 3 posts. The constant maturity yields estimated by the Treasury Department (data here) today gain another 23 points at the 20-year and 30-year maturity. I assume the yields are driven by the event depicted in this article: EU Crisis Deal Buys Time for Greece: Papandreou.
Interestingly, the chart below shows that the yields on the Japanese Government Bonds head toward the opposite direction. (Data is here) Sometimes, the discrepancy is due to the difference between the market close times for the US and Japan markets. But the change in yield has been negative for the past two days. Also, the change in yield is relatively small. 
Reference: Bloomberg [Bloomberg]