Republican presidential candidate and former Massachusetts Gov. Mitt Romney wears protective glasses as he tours Worthington Industries, a metal processing company, in Worthington, Ohio, Thursday, Oct. 25, 2012. (AP Photo/Charles Dharapak)

Associated Press
Republican presidential candidate and former Massachusetts Gov. Mitt Romney wears protective glasses as he tours Worthington Industries, a metal processing company, in Worthington, Ohio, Thursday, Oct. 25, 2012. (AP Photo/Charles Dharapak)
Republican presidential candidate and former Massachusetts Gov. Mitt Romney wears protective glasses as he tours Worthington Industries, a metal processing company, in Worthington, Ohio, Thursday, Oct. 25, 2012. (AP Photo/Charles Dharapak)
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