The official U.S. unemployment rate has reached its lowest level in two-and-a-half years. The Labor Department says the jobless rate is now at 8.6 percent, the first time it’s been below 9 percent since March 2009. The U.S. also added 120,000 jobs last month, higher than expected. Despite the figures, the percentage of the unemployed who have gone without jobs over the long term increased to 43 percent, while the total percentage of adults in the workforce fell to 64 percent.