Fed Chair Warsh Says We Need New Measures To Understand Underlying Inflation; Inflation Is A Choice By The Fed And Fiscal Policymakers; Fed Has More Control On Price Level Than On Unemployment Rate; Don't Think QE Is Inherently Inflationary, Especially In A Crisis; If I Had A Preferred Inflation Measure Wouldn't Have To Ask Task Force To Go Back To First Principles; Will Ensure Monetary Policy Is Independent