Abaco Islands Destruction, Vaping Illness Investigation, Urban Heat Dangers : Up First Great Abaco Island residents who survived the hurricane speak of dead bodies in the contaminated water and how they're desperate to escape. More than 200 people have come down with mysterious lung illnesses after vaping. What do health officials know about what's causing this? And a new investigation finds a troubling pattern in major American cities - poor neighborhoods are hotter than wealthy neighborhoods and climate change is widening the gap. What does that mean for these communities?