U.S. Secretary of Labor Hilda Solis signs autographs outside the Flat Rock Assembly in Flat Rock, Mich., Monday, Sept. 10, 2012. The plant, formerly known as AutoAlliance International will continue to produce the Mustang and add the Fusion next year. Flat Rock Assembly will be the U.S. producer of the Fusion, employing 2,900 workers on both vehicle lines. (AP Photo/Carlos Osorio)
U.S. Secretary of Labor Hilda Solis signs autographs outside the Flat Rock Assembly in Flat Rock, Mich., Monday, Sept. 10, 2012. The plant, formerly known as AutoAlliance International will continue to produce the Mustang and add the Fusion next year. Flat Rock Assembly will be the U.S. producer of the Fusion, employing 2,900 workers on both vehicle lines. (AP Photo/Carlos Osorio)