Not to nitpick, but none of those guns used are fully automatic. If you watch you can see them pull the trigger each time a round is fired. The shotgun is pump action and the rest are semi-automatic.
Now I will end my ridiculously detailed analysis of this silly video.

What a terrible shame. This is one of my favorite places in the city, and the second one closed in the last few years (I miss the Enchanted Forest). I used to attend events at the Cathedral regularly and, without fail, they have been wonderful, memorable events.
Anyone who has ever climbed around in the Cathedral knows that it is incredibly sound, and poses little danger. Even if it did, I would really love it if my city would let me take the occasional risk and play where I please.
This is not the city that I moved to twelve years ago.

Pneumatic tube container. Possibly from the New York mail system. (stuffed brain cell)

Pneumatic tube container. Possibly from the New York mail system

dreck.

How did this make it on? Dreadful.

Isn't modern industrial farming wonderful?

Wow, if everyone thought like you do we would still be sitting around fires, dying in our twenties, and cowing in fear during an eclipse.
The contribution to knowledge that we can expect from CERN is immense. As an example you should look at the list of advances that were made possible because of the accelerator at Fermi Lab.
We have superconducting wires to transmit electricity with little loss, mag-lev train, PET and MRI scans, proton therapy to kill tumors, medical isotopes, parallel computing, nuclear waste transmutation, and advanced drug development. There wouldn't be an internet if it wasn't for Tim Berners-Lee, a physicist at CERN. This is a small part of a large list of very real advancements that we have because of particle accelerators.
There are virtually no sciences that have not been advanced because of the work done in particle accelerators.
This doesn't even take into account the pure scientific understanding that we will gain through this tool. How can you argue against understanding the universe better than we do now?
Also, if you spent the money that it takes to build and run a facility like this is would do little to help the poor or alleviate their suffering. It would disappear with little obvious changes. But the advances that we will make through the work at CERN will impact everyone. Should we stop all research to try and feed the hungry? Who gets to decide what legitimate research is? I think that the support of the worldwide scientific community shows the importance of CERN.