Donald Trump's Director of National Intelligence Tulsi Gabbard resigns, citing her husband's recent cancer diagnosis - but Ms Gabbard had also struggled with the president's decision to enter into foreign wars. Our North America editor looks back at another tumultuous week for Mr Trump. Also: the Democratic Republic of Congo says Ebola cases have now been reported across several conflict-hit eastern provinces; demonstrators in Cuba hold a rally in support of the island’s former leader, Raul Castro, who has been charged by the US with murder and other crimes over the shooting down of two US civilian planes in 1996; the British scientists trying to create a gym for astronauts in space; the legacy of Carlo Petrini, the founder of the global slow food movement; and the tennis legend Billie Jean King finally graduates at the age of 82.