The conditioning through the media is, to me, one of the biggest red flags that the spraying is real. Here we have an old movie that is "updated" for a modern commercial:Posted by PAVONIA (here)
Even in movies, TV shows, cartoons, TV Ad's, print AD's and pretty much any media the chem trails are seen. Its just brainwashing people to thinking.."oh, well I guess its normal".
(I would have preferred to link this video, because it plays clips from both the 70's movie and the 2005 commercial, but the video creator included a very unfortunate and credibility-smashing "creative rendition" at the end where chemtrails are seen all over the sky above the children -- and this image is seen as the still-screen shot in the YT link. Still, it might be worth seeing the movie and the commercial together if you're curious.)
There are many other examples of conditioning that one can find by searching.
If these really are just harmless vapor trails, why is there a need for subliminal cues?