well. and these buildings so poorly constructed, wolf, as you saw, they come tumbling down. so many of these crush injuries as a result. but so much of this is about planning, which is why some places around the world can sustain earthquakes better than haiti could. and after the earthquake itself, just a complete lack of medical resources. it's tough, wolf, as a doc, because so many preventable deaths occurred in those first few weeks after the earthquake because people simply couldn't get medical care. now, granted, during an earthquake, it's challenging no matter what. but there was just absolutely no reserve to be able to take care of so many of these challenging problems. >> what's the greatest health related issue facing the people of haiti, sanjay, right now? >> well, even before the earthquake, about half the country, maybe even less than that, had access to clean water. it's not something people in the united states think about when they think about health care problems. but if you don't have it, it's