Re: if someone would be so kind
"nothing gives you the widespreag yet targeted dispersion like air spraying"
Well, it seems like putting it in the air would give you less ability to target, as it is dispersed to the winds, floats around, etc. The air is much harder to control than ground or water, if you want to target people.
I also don't understand why these people would want to pollute the air, unless they have some delusion it won't ever be breathed in by them, or they don't care (and have some defense). Putting it in the food targets a specific demographic, and they don't have to eat that particular food. People fool themselves all the time into thinking that the pesticides will "stay over there," or that the food additive will only end up in just those products, the toxic waste is contained in those barrels over there (until there is flooding, ha!), etc. I don't know how you fool yourself into thinking something you spray into the great soup of the atmosphere is "contained" or "targeted," especially if it's as widespread as discussed here.
I would think Saddam Hussein didn't have the infrastructure to put stuff in water and food. Maybe for him, it was easier to spray things around. But here, they do an effective job of it, like convincing people that fluoride in the water is "good." The Kurds are subsistence farmers, not Safeway-Twinkie-eaters.
I don't think Saddam's nerve gas spraying is quite the same as the chemtrails being discussed here. Different stuff, different purpose, right?