yup, i have seen several original videos about biological weapons tests from the 40this 50thies 60thies 70 thies. thats why the patent mentiond in the post is so important. It makes mass adoption possible due the fact, that the aluminium-oxides or barium oxides are mixed to the kerosin and can be used by all the aviation traffic. That is the key, because otherwise it would be far too expensive to fly all these planes just to bring out the materials.