The British data firm described as “pivotal” in Donald Trump’s presidential victory was behind a ‘data grab’ of more than 50 million Facebook profiles, a whistleblower has revealed to Channel 4 News. In an exclusive television interview, Chris Wylie, former Research Director at Cambridge Analytica tells all.

A million refugees arrived in Europe this year, says Alexander Betts, and "our response, frankly, has been pathetic." Betts studies forced migration, the impossible choice for families between the camps, urban poverty and dangerous illegal journeys to safety. In this insightful talk, he offers four ways to change the way we treat refugees, so they can make an immediate contribution to their new homes. "There's nothing inevitable about refugees being a cost," Betts says. "They're human beings with skills, talents, aspirations, with the ability to make contributions — if we let them."