This episode was predictable. There jus had to be an idiot in the begining to get bit by a zombie and spred it around the school... also never put your arms around the head of a zombie (rei's boyfriend)
Overall, it was an awesome show. It was pretty funny too.
Crstal F, is right. Fan service will be fan service. At least the anime's good even with fan service. Usually any animw with fan service is just chaotic. :3
It actually makes some sense given the plague scenario that is happening. The zombies are going to be centralized in major metropolitan areas. They aren't going to travel far on their own due to the whole mindless thing. So, if you find a small, isolated country, like Japan, nuking the major cities would clear out most of the zombies in that country. Then, a military force could go in and clear out the remaining few zombies, allowing an island to be created that is zombie free.
Or, it could just be a way of showing that the entire world is going crazy. The order to fire came not from the actual president, but from someone several steps down in the chain of command. That someone was probably going crazy by then, as were those who actually fired the missles.