Local authorities are conducting a second inspection of the remaining building because the result of the first check was inconclusive. They expect to complete their second inspection until after midnight.
According to the Centers for Disease Control and Prevention (CDC), sarin a human-made chemical warfare agent classified as a nerve agent. It is a clear, colorless, and tasteless liquid that has no odor in its pure form. However, sarin can evaporate into a vapor (gas) and spread into the environment. Germany originally developed sarin as a pesticide in 1938.
Nerve agents are the most toxic and rapidly acting of the known chemical warfare agents. They are similar to certain kinds of insecticides (insect killers) called organophosphates in terms of how they work and what kind of harmful effects they cause. However, nerve agents are much more potent than organophosphate pesticides.
