US 10-year yields at 2.37% from a low of 2.31%

The lack of concern about Greece isn't just limited to the euro and European stocks. The Treasury market rallied after the soft Empire Fed and weak industrial production but yields won't be held down.

They're not trading in the 'gap' in a sign of greater worries about the Fed than anything.

Normally, you'd say that's a good sign for the dollar but there is so much speculative money that's worked its way into Treasuries via the EUR/USD trade that rising yields tend to boost that pair and spill over into the rest of the market.