Scientists have been after neutrino's for a long time. Once, maybe still, they had a huge tank of cleaning fluid in a deep mine in SD or ND. Neutrinos have been elusive because the essentially have no mass and simply zip through solid matter w/o reacting. Cleaning fluid has chlorine in it. Chlorine is a halogen and this group are the most reactive elements on Earth. The hope was chlorine would trap neutrinos.
Not sure just what one might do with a neutrino. Sell on Ebay?
The fear that the scientists might open Pandora's Box has always been around but more so in the nuke age. Even some scientists had theories that breaking open the atom might start a chain reaction through all matter and we would cease to exist.
But like God told the first family, Do Not Eat, we can't help ourselves. Humans explore. It's what we do.
In other colliders like Fermilab (sp), other particles have been discovered. Quarks. Some descriptions have been as "Having tendencies to exist".
Strange names like Up'ness, Down'ness, Strange'ness, Charm, and the Love Quark. it's another world.