Email chains? You're thinking about some early internet 40 years ago. Twitter has 20 years, Instragram 15. People were sharing fake images on social media long before AI. I just can't imagine anyone responsible making decisions like stopping trains based on a single image on the internet. You know how easy would it be to post an image of a forest fire on Twitter? You don't even have to fake it, simply take an image from some other fire. You make decisions like that based on credible calls, not something you saw online.