Tonight S2018E13 - Britain V Russia: A New Cold War?

Relations with Russia are at their worst for decades after the Putin regime was blamed for a chemical attack in Salisbury that poisoned a former Russian double agent, his daughter, and a policeman who tried to help them. It was a shocking event that has led to tit for tat diplomatic expulsions and threats of further action, but how bad could things get, and what can Britain really do? Adam Shaw investigates.