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.
A link to Reddit to a link to unverified “documents” is not news. It’s gossip at best.
News should be verifiable and fact checked. Not some random post in a subreddit.