Videographic on nerve agents. The toxin believed to have poisoned Russian opposition figure Alexei Navalny is from a group of chemicals that range from insecticides to military-grade nerve agents, experts say.
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Videographic on nerve agents. The toxin believed to have poisoned Russian opposition figure Alexei Navalny is from a group of chemicals that range from insecticides to military-grade nerve agents, experts say.
Related stories:
