Angela Merkel has been speaking at a joint press conference with David Cameron in Westminster:
Merkel: What we are discussing here is "doable" but adds "I am a great champion of freedom of movement"
Merkel: Is immigration into social security possible? It's just as much a headache for us in Germany as it is in Britain
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The First Lady gave an enthusiastic backing for the Democratic presidential frontrunner in a speech at the Democratic National Convention.
Vitaly Stepanov, who helped uncover the Russian doping scandal, says the IOC is less concerned about ridding world sport of drug cheats.
Colombian drug lord Daniel Barrera Barrera was fined $10m for manufacturing hundreds of tonnes of cocaine that he trafficked globally.