Who started using the term "blister agent", which sounds about as lethal as sunscreen? Why didn't our military people begin by referring to these WMDs as "mustard gas", which term has been around a long time, is more widely understood and has far more powerful connotations. And if the media scum persist in treating the discovery of these mustard gas munitions like a church social, then we should take a dozen or so of them, strip them down to their skivvies and give them a light misting with the stuff. After a week they will be singing a different tune about "blister agent", aka mustard gas.
Well, it's less lethal than high explosives or bullets.
Despite being used in a huge % of shells and in vast quantities in WWI, the percentage of deaths caused by chemicals in WWI was remarkably trivial compared to good ol' high explosive, and simply getting shot.