If you want to know where they are, consider how many times you've heard "Those things are worse than cigarettes", stated to you by people that know absolutely nothing about vaping, and say it with absolute certainty.I just don't see any of these propaganda sources. Are they real, or imagined?...
Now determine what they heard that caused them to come to such a firm opinion, despite the fact that it absolutely flies in the face of every known fact, and who told them that, and you will find the source of the propaganda.