U.S. consumer prices barely rose last month as a sharp increase in energy costs was offset by cheaper clothing, cars and air fares. The figures indicate inflation remains mild. The Labor Department said Thursday that the consumer price index rose just 0.1 percent in January, down from a 0.2 percent gain in December. Prices have risen 1.6 percent in the past 12 months. Excluding the volatile food and energy categories, core prices also rose just 0.1 percent last month and 1.6 percent in the past year. The year-over-year increase in core prices was the smallest in seven months. The "mild...