Why the West needs to go after Putin's €200bn riches
US and UK will bring Russians to heel when they stop harbouring kleptocrats' staggering wealth
British Prime Minister Theresa May's initial response to the attack with a nerve agent in England was old-school.
She expelled 23 Russian diplomats, allowing Moscow to expel the same number of British diplomats and close the British Council and a British Consulate in Russia.
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