Trump's Nato criticism: Does he have a point?

Available for over a year

Is Nato obsolete or is it very important? Donald Trump's said both - we ask a former commander Richard Shirreff how the alliance should be reformed. Also as Northern Ireland heads to the polls we ask Naomi Long, leader of the cross-community Alliance Party: what's gone wrong with power sharing. And: a crack on an ice field has forced the British Antarctic Survey to pull out staff from its research base - we'll speak to the research team leader. Picture: Nato flag Credit: Reuters.