The UK has the highest incidence in the world of poisonings caused by the toxins produced by E.coli O157:H7. It killed 17 people in the outbreak centred on Wishaw in central Scotland in 1996, still a world record for lethality. My involvement in attempts to stop a repeat led to an invitation to visit the Defence Science and Technology Laboratory at Porton Down. Security was impressive. The heavily armed welcome at the gate left an abiding memory. It is reasonable to guess that the Russian chemical warfare facility at Shikhany is as well guarded. The notion that nasty substances of high purity could leave it without some kind of authorisation seems highly unlikely.