I already wrote about following in some place. And, I also wrote this in japanese first. Because, I wanted to know about this for japanese engineers. Many of u know the earth quake in japan, it was occurred one years ago. And, many of online services was developed or tested for such kind of disaster attacked. Before the earth quake, I had claim weak buttery on smart phone. In the place where is attacked by disaster, it needs more than one weeks for recovering the infrastructure. However, current mobile phone especially mobile phone can be used only half day to 2 days. It is not enough in such situation. It is enough to call at least one know person. It is one opinion. However, in many case, it is also impossible to call one phone call to known person due to the network traffic jam. On another hand, facebook tested a online service what we can tell our life through the facebook, when disaster will be happened. Well.... the last version of this service was nee...
I don't know....... You don't know........who know.....???