Potent neurotoxin developed in Soviet Union thrust into limelight with Skripal poisoning
Dawn Sturgess
Duo thought to be preparing surveillance of world leaders at conference
King’s College claims RT and news agency Sputnik distorted nerve agent attack reports
Three MEPs among activists who broke into Kleine Brogel air base and unfurled banner
Two people ill at restaurant near to where Skripals visited before they were poisoned
Ruslan Boshirov and Alexander Petrov: Contentious points in Russian TV interview
Two men accused by British police of trying to murder Sergei Skripal declare innocence
UK identifies two Russians as suspects in poisoning of former spy and his daughter
Investigators think two men visiting from Moscow tried to commit murder in Salisbury
Alexander Petrov and Ruslan Boshirov seen on CCTV in UK at time of poisonings
Washington has announced punitive measures in response to Sergei Skripal poisoning
Theresa May: ‘I am appalled and shocked... this incident is now being investigated as a murder’
Two people critically ill after exposure to nerve agent used in attack on ex-Russian spy
Two in critical condition after poisoning close to site of Salisbury attack blamed on Russia
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