With the former, unless you're specifically out to do it, you aren't going to end up killing a large quantity of innocent civilians
I am really failing to see much substantive difference between killing people with this or with that. Civilians make up a huge percentage of deaths in so-called conventional warfare.
Rationally speaking, guns, today, at this very moment are hurting way more inocent people than chemical weapns. Which isn't to say chemical weapons are anything but nasty, but so are the ak47s used to round up the next batch of child soldiers.
I'll grant that chemical weapons are less controllable and may seem scarier
but I don't really think being machine gunned to death would be pleasant ...how about we stop quibbling about how we kill people and move towards a more rational world?
When it comes to sitting around not doing anything for long periods of time, only being active for short windows, and marginal changes and sidegrades I'd say FFXI players were the perfect choice for politicians.