Russia also has this technology. During the mass fires in Indonesia and Australia they volunteered its use but the help was turned down.

Although it is tested the outcomes are still somewhat unpredictable. Yes a drought could be ended but as a result a drought may then occur elsewhere.

There is still something almost spiritual [although a tradgedy for the innocent] about defeating an enemy so evil with something as pure as a snow flake or drop of rain from the heavens. It could be a weapon of biblical proportions in more ways than one.