Nerve gases definition

Unable to provide definitive answers to most of these questions, chemical warfare specialists continued to repeat what we have already heard that a single whiff of a nerve gas such as sarin, or a single drop of a liquid nerve agent such as VX can be fatal. They incorrectly warn us that an enemy can pack enough such poison into a single missile warhead to annihilate thousands of people, perhaps the population of an entire city. They note that even the skin can be penetrated, but then tell us it is even more important to possess an airtight mask. 

On March 20, 1995 at 8.05 a.m. the nerve gas sarin was used in a terrorist attack on crowded commuter subway trains in Tokyo, killing 12 and injuring over 5,000 people [17-19], Although it was first announced by the media that the causative agent was cyanide, it was subsequently definitively confirmed that the nerve gas sarin was used [20],... 

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