Fed's Waller Says If There Is Another Hot Reading On Core Inflation This Week, U.S. Central Bank Will Need To Consider Rate Hike In Near Term; Would Need To See Several Months Of Lower Core Inflation To Feel Inflation Is Moving In Right Direction; He Is Concerned About Elevated Pace Of Core Inflation; Still A Credible Case For Inflation To Fall Back To 2% Without Higher Rates; He Is Committed To Returning Inflation To 2% Target; Also To Avoid Over-tightening Policy And Risking Recession