Chain Reaction

"Sir Robert Hargraves said, 'We are no longer faced with a serious accident endangering the lives of a known section of the community, but with an apparently limitless chain of danger of which we do not know the cause.' He picked up his glass of water and held it up. 'A tumbler of water, this cigarette, Gatts stomach pills... all or any of these could be lethal..." A fight against time to stop thousands being poisoned by a source of contamination that reflected Cold War fears or fears ahead of their time.