FILE - In this Friday, Aug. 17, 2012 file photo, Sheila Bird, right, waits in line for employment interviews at a job fair at City Target in Los Angeles. Unemployment rates fell in nearly 90 percent of large U.S. metro areas in August, mainly because more people gave up looking for work. The Labor Department said Wednesday, Oct. 3, 2012, that unemployment rates dropped in 329 large cities, the most in four months. (AP Photo/Nick Ut, File)

Associated Press
FILE - In this Friday, Aug. 17, 2012 file photo, Sheila Bird, right, waits in line for employment interviews at a job fair at City Target in Los Angeles. Unemployment rates fell in nearly 90 percent of large U.S. metro areas in August, mainly because more people gave up looking for work. The Labor Department said Wednesday, Oct. 3, 2012, that unemployment rates dropped in 329 large cities, the most in four months.  (AP Photo/Nick Ut, File)
FILE - In this Friday, Aug. 17, 2012 file photo, Sheila Bird, right, waits in line for employment interviews at a job fair at City Target in Los Angeles. Unemployment rates fell in nearly 90 percent of large U.S. metro areas in August, mainly because more people gave up looking for work. The Labor Department said Wednesday, Oct. 3, 2012, that unemployment rates dropped in 329 large cities, the most in four months. (AP Photo/Nick Ut, File)
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