Though i didnt understand what they are trying with this experiment, it seems to be quite an effort. Two beams of particles travlling inside a 17 mile circular tunnel at near light speeds in full vaccum guided by magnetic fields, generated by huge magnets of 15meters length operated at super chill temperature of -271 degree c matching outerspace, finally collide with each other. This collision will be watched by four big machines with an anticipation that there will be some new particles emitted during collision. The new particle could explain the evidence of more than three-dimensions of space. Reminds me of the movie The Golden Compass where they show parallel universes being connected with DUST.
Well they did all that but forgot that someone could hack the system like this. See report from telegraph.