By Paul R. La Monica, CNN Business Back in March, people were freaking out about rising long-term interest rates and inflation fears. But now the 10-year US Treasury yield has fallen back again. Does this mean: So much for inflation worries? Maybe higher prices are in fact, to cite Federal Reserve chair Jerome Powell’s favorite word, transitory after all? Not so fast. There’s a growing chorus of experts who believe that the Fed may need to reverse course and start talking more aggressively about tamping down inflation. After all, consumer prices continue to rise. The stock market is near ...