So I'm tasking you with the job. When you're older and one of these machines starts up, and people start going, "It's going to destroy the earth!" Th… - Suzie Sheehy

Well they quickly realized that this was crazy, and that they were never going to be able to actually make a weapon out of one of these machines. Mostly for the reasons that I explained before. Even if you had the Large Hadron Collider in space, I have no idea how you'd get it up there, but even if you did, it would... be difficult to do damage with it. Mostly because beams would just go through things and out the other side.

So what about the heat from the beam? Well this is a challenge... [I]t's actually incredibly difficult to stop the beam, and if you put your head in front of the beam... it would actually go straight through and out the other side. In fact it has enough energy to go through your head and out the other side about 100,000 times before it loses all it's energy... [T]hat's actually one of the issues they had to deal with when designing the machine, is how do you stop the beam... [W]e want to stop it occasionally, intentionally...

So that's 5 things you should never do with a particle accelerator. Thank you.