"Can you imagine what our lives would be like after a devastating asteroid strike? What effect would the resulting tsunami, storms, and dust cloud have? What would happen to the climate, wildlife, and
"Can you imagine what our lives would be like after we run short of vital fossil fuels? What would happen to our transportation, to the way we produce and distribute food, and to the many machines and
"Can you imagine what people's lives would be like after a nuclear disaster? How frightened would people be, and how would they respond to the unseen dangers? What might be the impact on our food, our
"Can you imagine what our lives would be like after an outbreak of super-plague? How would people respond to the danger and how would medical professionals cope? What would be the threats to public or
