Midnight deadline for Russia to explain spy poisoning

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Theresa May and Donald Trump have agreed that Moscow must explain how a Russian nerve agent was used to poison a former double spy in Wiltshire. We talk to a prominent German politician from Angela Merkel's CDU party and to a former NATO official. President Trump has sacked his top diplomat with a tweet. But what impact does Rex Tillerson's departure have on America's foreign policy? And we report on explosion of obesity in Qatar. Is lifestyle to blame? (Picture: Sergei Skripal and Yulia Skripal enjoy a meal together Credit: Copyright unknown / Supplied by Rex Features Ltd).