Nuclear Physicist Walter Wagner expresses his concerns and lawsuit to delay the turning on the Large Hadron Collider (LHC) at CERN. Earth may be in danger if the LHC proceeds without further investigation.
"The Large Hadron Collider (LHC) could allow it to become a black-hole factory with a production rate as high as about one per second." Source: CERN Courier Nov 12, 2004
The case for mini black holes.
Hopefully if there are black holes produced they will all evaporate and/or escape earth's terminal velocity.
Keep in mind the mini black holes, Hawking Evaporation Law/Hawking Radiation has yet to be proven.