

In principle, these type of weapons are immoral even in war. We’re talking about things like mustard gas, chlorine gas, sarin gas. Nerve agents that are incredibly cruel and painful. They painfully, sometimes slowly, kill or incapacitate indiscriminately.
I think in practice warfare and weaponry have changed enough that the U.S. military feels it can wage war more effectively without these type of weapons.


Communication and transparency. Everyone should know so that everyone can make decisions based on their own risk tolerance.
Personally, in an open group, barriered sex is the default except for two primaries. In a closed group, I think it just depends on everyone risk tolerance and trust.
Personally I’d be fine going barrier free if I was in a closed group I trusted. Like all things, the bigger the group, the more likely somone isn’t playing by the rules.
So I think it depends a lot on the circumstances.