I Stopped Cosmonauts from Carrying Guns (2014)

> Since the dawn of the Space Age, diplomats and their legal staffs have wrestled with the challenge of constraining the use of space for overtly militaristic purposes, especially as a stage for deploying or actually using weapons.

And they have always failed. If anything, space has always been highly militarized. The idea that there should be no guns in space doesn't stand up to scrutiny anymore than the idea that there should be no guns on Earth. The whole matter is really inconsequential compared to the issue of nukes and other types of weapons in space.