FILE - In this Dec. 1, 2010 file photo, plant employees assemble a 2011 Ford Explorer on the assembly line at Ford's Chicago Assembly Plant. Ford Motor Co. said Wednesday, May 22, 2013 that 21 of its ... more 
FILE - In this Dec. 1, 2010 file photo, plant employees assemble a 2011 Ford Explorer on the assembly line at Ford's Chicago Assembly Plant. Ford Motor Co. said Wednesday, May 22, 2013 that 21 of its North American factories will shut for only one week this summer. That includes the Chicago plant that makes the Ford Explorer SUV and the Mexican plant that makes the Fusion sedan. (AP Photo/M. Spencer Green, File) less 
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Associated Press | Photo By M. Spencer Green, File
Wed, May 22, 2013 6:38 AM EDT