When I was a child, the disaster we feared most was the nuclear war. The greatest danger from today's global catastrophe is not missiles, but microbes. Because we have invested a lot of energy and money on nuclear deterrence, but we have invested little in systems to prevent the epidemic. We have several obvious deficiencies. First, we can't find a group of prepared epidemiologists.Second, there are lags in our information. Third, we can't find trained medical teams. In addition, the speed of many of us workers to the epidemic area is still very unsatisfactory, and we have no one studying the direction of treatment, no one is looking at the diagnosis method, no one is thinking about what tools to use. We can build a very good response system to that. First, there must be developed health systems in poor countries. Second, there need to be a lot of trained professionals to be ready to bring their expertise to the epidemic areas. Third, we need to do some situational simulations, not war games but germ games, to see where the defenses are vulnerable. Finally, we need a lot of work on vaccines and pathology. This is a matter of no delay.