You know the answer to that: zero. In the court of public opinion, existing risks are internalized and heavily discounted while new risks are always perceived as gargantuan no matter how small.
It's basic human psychology, it's why some people prefer to drive long distances instead of flying, and why a flu pandemic is conducive to mass hysteria, while the obesity and diabetes prevalence, orders of magnitude more deadly, barely appears on the radar.
It's basic human psychology, it's why some people prefer to drive long distances instead of flying, and why a flu pandemic is conducive to mass hysteria, while the obesity and diabetes prevalence, orders of magnitude more deadly, barely appears on the radar.