Director General of CERN, Rolf-Dieter Heuer, gestures as he speaks during an 

Director General of CERN, Rolf-Dieter Heuer, gestures as he speaks during an interview  with The  Associated Press at  the World Economic Forum, WEF, in Davos, Switzerland, Saturday, Jan. 26, 2013. (AP Photo/Michel Euler)
Associated Press
Director General of CERN, Rolf-Dieter Heuer, gestures as he speaks during an interview with The Associated Press at the World Economic Forum, WEF, in Davos, Switzerland, Saturday, Jan. 26, 2013. (AP Photo/Michel Euler)
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