Technicians are seen working in the Compact Muon Solenoid (CMS) experiment, part of the Large Hadron Collider (LHC), during a media visit to the Organization for Nuclear Research (CERN) in the French village of Cessy, near Geneva in Switzerland, July 23, 2014. According to a press release from CERN, the LHC, the largest and most powerful particle accelerator in the world, has started to get ready for its second three-year run which will start in early 2015. REUTERS/Pierre Albouy (FRANCE - Tags: SOCIETY SCIENCE TECHNOLOGY)