Tokyo subway commuters collapse onto the ground outside a Tokyo subway station on March 20, 1995 following a nerve gas attack on the Tokyo subway system. Photo: Reuters

Chinese scientists sniff out new cheap way to detect a sarin gas attack

Chip-like detector developed in Anhui province could be rolled out at low cost to raise the alarm in vulnerable public places like subways

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Tokyo subway commuters collapse onto the ground outside a Tokyo subway station on March 20, 1995 following a nerve gas attack on the Tokyo subway system. Photo: Reuters
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