Will a black hole one day destroy the world?

Having a bad day? Well at least we haven't all been swallowed by a Black Hole.

Before the Hadron Collider at CERN in Switzerland was first turned on in 2010 some believed it could have created a black hole that would swallow the earth.

The particle accelerator sped up protons to energies larger than we have ever observed and people were somewhat unsure about what would happen.