VX used in airport murder of Kim Jong Nam kills in minutes
With the texture and feel of engine oil, the chemical VX was first produced in the United Kingdom in the 1950s.
Feb 24, 2017, 11:08 AM ISTNorth Korea has large chemical weapons stockpile: Seoul
North Korea has up to 5,000 tonnes of chemical weapons, South Korean experts said Friday, including the toxin used to assassinate its leader`s half-brother.
Feb 24, 2017, 10:19 AM IST