Fed Chair Powell Says Long-Term Measures Of Inflation Expectations Consistent With 2% Goal; Last Year's Rate Cuts Bring To Plausible Estimate Of Neutral; Near-Term Higher Energy Prices Will Push Up Overall Inflation; Near-Term Inflation Expectations Have Risen, Probably Due To Middle East Conflict; Too Soon To Know Scope And Duration Of Effects On Economy; Well-positioned To Determine Future Rate Adjustments; Individual Policymaker Rate Projections Are Subject To Uncertainty, Not A Plan Or Decision