U.S. shares seesawed Monday with the big averages hitting their lows of the working day immediately after Federal Reserve Chair Jerome Powell sounded alarms on surging inflation and vowed challenging action. The Dow Jones Industrial Average shed 201.94 factors, or .6{21df340e03e388cc75c411746d1a214f72c176b221768b7ada42b4d751988996}, to close at 34,552.99. The blue-chip typical was down […]