US consumer prices climb at fastest annual rate since 1982

People shop at the Citadel Outlets ahead of the Christmas holidays on Thursday in Los Angeles. (Frederic J. Brown/AFP/Getty Images/TNS)

U.S. consumer prices rose last month at the fastest annual pace in nearly 40 years, underscoring how rapid and persistent inflation is eroding paychecks and increasing pressure on the Federal Reserve to tighten monetary policy.