While experimenting with Large Hedran Collider are we putting to risk the Earth?

It is a matter of great concern that "While experimenting with Large Hedran Collider are we putting to risk the Earth?

What if actually antimatter is created and we could not hold it safe?

What will happen to the earth?

Can we risk the existence of earth?

These questions are very serious questions and we must have answers. Because the experiments are not taking place on moon or mars but on our mother earth.

Where are the earth & environment protectors???