Russia row: How will UK respond to spy attack
The Government has promised a "robust" response if Russia is behind the Salisbury nerve agent attack but what could be imposed on Vladimir Putin's regime?
:: Expelling diplomats
There have been calls to expel Russia's ambassador to the UK if the Kremlin ordered the poisoning of former spy Sergei Skripal and his daughter Yulia.
Sir Christopher Wrey, the former UK ambassador to the US who has previously worked in Moscow, told Sky News: "You could, if this is proven, take advantage of this horrible case and not only expel the ambassador, but drain the swamp of all these guys MI5 are tagging around the streets of London and wherever."
He added that the UK's response after the death of former Russian spy Alexander Litvinenko in 2006 - when four Russian diplomats were e...










