Or alternatively, duck, you can ban me because I'm defending myself because everyone believes that point defense is totally and completely inadequate and that this energy screen would be totally and completely useless. And no one would know about the energy screen anyways, so it's more like that someone will fire a low-yield tactical nuclear weapon instead of a more expensive full-yield nuclear weapon. It would be assumed that the tactical nuke would be enough to destroy the station sufficiently to render it useless, and the satellites around it would have to be routed to the station and then back to Ceres, because they only have short-range communication equipment and scanning equipment. It'd be hard to tell that there were weapons on them without actually getting up into orbit and getting a closer look.