Comment by pfdietz

> fusion plants can't be used to make bombs

Helion's reactor, if it works, could become a source of the cheapest neutrons on the planet. It would greatly enable nuclear proliferation by providing neutrons for breeding of fissionable material for bombs.

A 50 MW DD reactor would produce enough neutrons to make half a ton of plutonium per year. Remember, none of these neutrons have to be turned around to make tritium, as they would have to be in a DT reactor.