I don't think these trails are being used to 'infect' us. Well, at least, not at this point in time. They may have an effect on us, but I believe
the contents are being used for other purposes. My guess is that they have something to do with the weather. Based on my observations, these trails
are primarily occuring when the sun is quite visible and the sky is clear. A lot of people complain about them 'blocking the sun' or 'clouding the
clear blue sky'. Whatever the purpose, I don't think positive results can be achieved unless the sun is out. Hence, day time spraying instead of
nighttime.
I really have no proof for my claim, but I believe there is basis to believe something is happening. You can check the other 457384718374 threads for
more information.
[Edited on 1/12/2004 by Bangin]