pricing does not work

In the past, one of these voices was precisely the Fed’s chair, Jerome Powell. The reasoning? Changes in interest-rate markets have distorted the information that we can take from the yield curve. To put it simply, we cannot extract as much information on the growth outlook from the yield curve as in the past. This view was shared by Ben Bernanke, who named last summer “regulatory changes and quantitative easing in other jurisdictions” as distortions affecting the curve’s signalling power.

Bernanke gets the point but not the significance. 
If the Treasury curve is foul then government pricing is inaccurate and Congress is blind.