FRANKFURT (Reuters) -There is no need for big monetary policy tightening in the euro zone as inflation is set to fall back and could stabilize around 2%, European Central Bank President Christine Lagarde said on Monday. Pointing to mounting inflation risks, the ECB opened the door last week to an interest rate hike later in 2022 and said that a March 10 meeting will be crucial in deciding how quickly the central bank would wind down its long-running bond-buying scheme, a cornerstone of its stimulus efforts. But Lagarde appeared more cautious on Monday, arguing that high inflation is unlikely t…