2013/8/4 b. brewer <bbrewer@littledystopia.net>
This is what concerned me too. They're in the middle of the desert. I doubt they really care about the air that much : /
Just use the spy-sats to see if they move the right amount of urea. Seeing the trucks doesn't guarantee anything, but at least it looks legit. (Oh I wish I was a spy sometimes)