Article Photos: Analysis: Romney sharpens differences with Obama



Republican presidential candidate and former Massachusetts Gov. Mitt Romney greets boy scouts as he arrives in Salt Lake City, Utah, Tuesday, Sept. 18, 2012. (AP Photo/Charles Dharapak)

Republican presidential candidate and former Massachusetts Gov. Mitt Romney greets boy scouts as he arrives in Salt Lake City, Utah, Tuesday, Sept. 18, 2012. (AP Photo/Charles Dharapak)