When a threat to life is common, as are automobile and industrial accidents, only unusual instances tend to be prominently reported by the news media  Instances of rare threats, such as product tampering, however, are seen as news by reporters and are universally reported in featured stories
People in general tend to estimate the risk of various threats by how frequently those threats come to their attention
The resources that are spent on avoiding product tampering are greater than the resources that are spent on avoiding threats that stem from the weather.