Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the National 

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the National Rifle Association convention in St. Louis, Friday, April 13, 2012. (AP Photo/Michael Conroy)
Associated Press
Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the National Rifle Association convention in St. Louis, Friday, April 13, 2012. (AP Photo/Michael Conroy)
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