Why is the UK accusing Russia of launching a nerve agent attack on Sergei Skripal in Salisbury, and what is the evidence? | The Independent

Why is the UK accusing Russia of launching a nerve agent attack on Sergei Skripal in Salisbury, and what is the evidence? | The Independent: Vladimir Putin’s government is mounting a “haystack of lies” to cover its role in the nerve agent attack on a former Russian spy, the Foreign Secretary has said. Boris Johnson hailed the “strength and resolve” of Britain’s allies after holding talks with Nato in Brussels.