In this Tuesday, July 10, 2012 photo, people walk by the recruiters at a jobs fair in the Pittsburgh suburb of Green Tree, Pa. The number of people seeking unemployment benefits plunged last week to the lowest level in four years, a hopeful sign for the struggling job market. But the decline was partly due to temporary factors. (AP Photo/Keith Srakocic)

Associated Press
In this Tuesday, July 10, 2012 photo, people walk by the recruiters at a jobs fair in the Pittsburgh suburb of Green Tree, Pa. The number of people seeking unemployment benefits plunged last week to the lowest level in four years, a hopeful sign for the struggling job market. But the decline was partly due to temporary factors. (AP Photo/Keith Srakocic)
In this Tuesday, July 10, 2012 photo, people walk by the recruiters at a jobs fair in the Pittsburgh suburb of Green Tree, Pa. The number of people seeking unemployment benefits plunged last week to the lowest level in four years, a hopeful sign for the struggling job market. But the decline was partly due to temporary factors. (AP Photo/Keith Srakocic)
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