A "buoyant'' U.S. economy is poised to see accelerated growth and lower unemployment this year. But big federal budget debts "represent a growing stability risk,'' the International Monetary Fund said Wednesday. The 191-country lending organization's assessment of the world's biggest economy was mostly positive. The IMF saw U.S. gross domestic product - the country's output of goods and services - growing 2.4% in fourth-quarter 2026 from the last three months of 2025, up from 2.2% growth the year before. [...]