The U.S. national debt of roughly $40 trillion is becoming more expensive to service as net interest payments rise to about $1.25 trillion per year, according to reporting cited by both outlets. Analysts quoted in the articles say the level of net interest costs is at the highest point in decades and reflects a worsening fiscal burden.

Both sources point out that the last time net interest payments were this high was about 35 years ago. They also describe a comparison that suggests the current situation is riskier than it was then, though specific reasons vary by analysis. The outlets frame the development as a shift in the trajectory of debt affordability, driven by higher interest costs rather than a single new spending measure.

While Yahoo News and Fortune use similar language about the debt situation entering “uncharted territory,” they differ mainly in emphasis—Fortune highlights the multi-decade context and analytical warnings about how the U.S. is “worse off,” while Yahoo News focuses more on the scale of the interest-payment figure and its implications.