Mo. Gov. Jay Nixon, left, and Hugh Grant, Monsanto chairman and chief executive officer, prepare to address Monsanto employees at the Monsanto Chesterfield Village Research Center groundbreaking on ... more 
Mo. Gov. Jay Nixon, left, and Hugh Grant, Monsanto chairman and chief executive officer, prepare to address Monsanto employees at the Monsanto Chesterfield Village Research Center groundbreaking on Tuesday, Oct. 22, 2013 in Chesterfield, Mo. (Whitney Curtis / AP Images for Monsanto Co.) less 
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Associated Press
Tue, Oct 22, 2013 8:54 PM EDT