CERN today issued an update of their safety report for the LHC as part of an LHC status update. The safety report reaffirms and extends the conclusions of the 2003 report: that the LHC collisions present no danger and there is no reason for concern. The essential conclusion is that any dangerous scenario that could present itself would have already occurred in nature, but the continued existence of Earth and the universe indicate that there is no danger from these hypothetical mechanisms.
Read the summary or the longer report.
Update: Read Dennis Overbye's coverage in the New York Times. The technical paper about black hole production is available as a preprint at the arXiv.
