WASHINGTON (AP) — Powered by strong consumer spending, the U. S. economy grew at the fastest pace in two years from July through September, the government said Thursday in a slight upgrade of its first estimate. America’s gross domestic product — the nation’s output of goods and services — rose at a 4. 4% annual pace in the third quarter, the Commerce Department reported Thursday, up from 3. 8% in the April-June quarter and from the 4. 3% growth the department initially estimated. of...