CERN

The European Organization for Nuclear Research known as CERN is the world's largest particle physics laboratory, situated in the northwest suburbs of Geneva on the Franco-Swiss border, established in 1954. The organization has twenty European member states, and is currently the workplace of approximately 2,600 full-time employees, as well as some 7,931 scientists and engineers (representing 580 universities and research facilities and 80 nationalities).

CERN's main function is to provide the particle accelerators and other infrastructure needed for high-energy physics research. Numerous experiments have been constructed at CERN by international collaborations to make use of them. It is also noted for being the birthplace of the World Wide Web.

The main danger could be now just behind our door with the possible death in blood of 6.500.000.000 (US notation 6,500,000,000) people and complete destruction of our beautiful planet. Such a danger shows the need of a far larger study before any experiment ! The CERN study presents risk as a choice between a 100% risk or a 0% risk. This is not a good evaluation of a risk percentage!

Cryogenics: compressor-bldg-SH1. Courtesy of CERN.	CERN Control Centre. Courtesy of CERN	Descent of the last dipole magnet into the LHC tunnel. Courtesy of CERN
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An aerial view of the Geneva region, showing the position of the LHC tunnel. Courtesy of CERN.	Cryogenics for the LHC test facility in 2001, String 2. Courtesy of CERN.	First magnets for the LHC accelerator installed, but unconnected, in the 27 km tunnel. Courtesy of CERN.
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LHC magnet: superconducting quadrupole magnet. Courtesy of CERN.	Members of Fermilab's Technical Division gathered for a send-off celebration for an advanced superconducting magnet (orange) bound for the Large Hadron Collider at CERN. Courtesy of Fermilab Visual Media Services.	LHC Magnet in tunnel. Courtesy of Fermilab Visual Media Services.

If we add all the risks for the LHC we could estimate an overall risk between 11% and 25%!.

We are far from the Adrian Kent's admonition that global risks that should not exceed 0.000001% a year to have a chance to be acceptable. [Ref. 3] .Even testing the LHC could be dangerous. Even an increase in the luminosity of the RHIC could be dangerous! It would be wise to consider that the more powerful the accelerator will be, the more unpredicted and dangerous the events that may occur! We cannot build accelerators always more powerful with interactions different from natural interactions, without risk. This is not a scientific problem. This is a wisdom problem!

Our desire of knowledge is important but our desire of wisdom is more important and must take precedence. The precautionary principle indicates not to experiment. The politicians must understand this evidence and stop these experiments before it is too late!