U.S. Treasury Secretary Janet Yellen told Reuters on Friday that it was good to see the latest U.S. inflation data that suggests upward pressures are easing, but added that it was unclear if inflation has a reached a turning point to continue moving lower. "I don’t know if this is a turning point," Yellen said in an interview in New Delhi a day after October U.S. Consumer Price Index data logged its smallest gain since January at a 7.7% annual rate.