US Treasury Secretary Yellen stated that the recent surge in long-term US bond yields reflects people's confidence in the US economy, rather than concerns about rising deficits or economic recession. She said that it is currently unclear whether long-term US bond yields will remain high for the long term, but the increase in yields is undoubtedly an important manifestation of economic strength. Yellen stated that if the interest rate path remains at a high level, the debt servicing burden of the United States will be a greater challenge.