What do nerve agents do and how hard are they to make?
the Guardian -

The ingredients for the lethal substances apparently involved in the poisoning of Sergei Skripal are easy to obtain and are usually absorbed quickly through the skin or inhalation

After days of analysis, police investigators announced on Wednesday that they believe a nerve agent was used to poison former Russian agent Sergei Skripal and his daughter on Sunday, raising questions of how it was created and how the attack was carried out.

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