OMG! Yellowstone is going to blow its top!
No, it isn't. Or yes, maybe it will - 146,239 years from now.
Meanwhile, we keep shoveling the fast food down our throats and sitting on our butts watching TV. (And surfing freere... oh, never mind...)
The greatest threats to people's well being, BY FAR, are the FOOD that Americans eat (both the quality and the amount), which contributes to the epidemics of cardiovascular disease and cancer, careless driving, and smoking.