Republican presidential nominee Mitt Romney A robot is moving at the Ideen Park fair on August 13, 2012 at the fair ground in Essen, western Germany. The fair is organised for children, youths and young adults by the German steel company ThyssenKrupp AG to arouse their spirit of research and to promote careers in the business of technique and natural sciences. By Patrik Stollarz/AFP/Getty Images.

– C.B.