The rambunctious, topsy-turvy U.S. Presidential campaign took its latest turn on Tuesday night. From jobs to gas prices to world events, central to the arguments advanced by both candidates was the idea of exerting control. Governor Romney, in particular, has criticized President Obama for “leading from behind” rather than using U.S. power to direct the evolution of events such as the Arab Spring. Early in his term, President Obama pledged to bring the unemployment rate to below 8%. Mitt Romney has promised to create 12 million jobs if elected. Should we take either candidate at his literal word?