FILE - This file photo made Dec. 17, 2008, shows shell pasta being inspected as it exits a pressing machine at the Ralcorp Holdings Inc. owned, American Italian Pasta Co. plant in Excelsior Springs, ... more 
FILE - This file photo made Dec. 17, 2008, shows shell pasta being inspected as it exits a pressing machine at the Ralcorp Holdings Inc. owned, American Italian Pasta Co. plant in Excelsior Springs, Mo. ConAgra Foods Inc. has made a $4.9 billion bid for Ralcorp Holdings Inc. Wednesday, May 4, 2011, which would broaden its business making store-brand products and make it the third-largest packaged food company in the U.S. less 
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Associated Press | Photo By Charlie Riedel, File
Wed, May 4, 2011 6:59 AM EDT