CERNs web site states that we have not been destroyed by effects of cosmic rays and micro black holes will evaporate.

However, cosmic rays travel too fast to be captured by Earths gravity, and Hawking Radiation is disputed and contradicts Einsteins highly successful relativity theory. Collider particles smash head on like a car collision and can be captured by Earths gravity, and relativity predicts micro black holes will not decay (Hawking called Einstein doubly wrong, yet it is Einstein who is repeatedly found to have been correct in his theories). There is currently no reasonable proof of LHC safety, LSAG (LHC Safety Assessment Group) has been trying for months to prove safety without success. I hold the minority opinion that it may not be possible because it may in fact not be safe.

Cosmic Rays from the legal complaint.

any such novel particle created in nature by cosmic ray impacts would be left with a velocity at nearly the speed of light, relative to earth. At such speeds, . . . , is believed by most theorists to simply pass harmlessly through our planet with nary an impact, safely exiting on the other side. . . . Conversely, any such novel particle that might be created at the LHC would be at slow speed relative to earth, a goodly percentage would then be captured by earths gravity, and could possibly grow larger [accrete matter] with disastrous consequences of the earth turning into a large black hole.

If this thing is so safe, why arent CERN scientists allowed to express any personal fears they might have about this Collider?

Alleged in the legal action: Chief Scientific Officer, Mr. Engelen passed an internal memorandum to workers at CERN, asking them, regardless of personal opinion, to affirm in all interviews that there were no risks involved in the experiments, changing the previous assertion of minimal risk.

(Statisticians generally consider minimal risk as 1-10%).

JTankers
LHCConcerns.com