If you actually read the articles, you will realize that physicists have NO idea of what may happen which is part of the mystery they are trying to unravel in the first place using the collider.
Your comprehension skills are failing you again
. The physicists are very well aware that collisions of very high energy particles are happening constantly in the stratosphere. However, up there they have no detectors to evaluate the consequences of such events. Accordingly,to replicate lower
energy collisions underground with the necessary equipment to record the outcome can be seen to be well within the margins of established safety.
Try milk on your cornflakes instead of whiskey.