OMG indeed. I don't completely understand this, however:

However only a small fraction of this energy would be available for an interaction with a proton or neutron on Earth, with most of the energy remaining in the form of kinetic energy of the products of the interaction[citation needed].

I mean, what is the alternative that is being assumed? It smashes the proton or neutron to bits. What I want to know, is if those bits could in turn smash other neutrons and protons apart, and so on. What if it his a proton in my nose?