Why doctors want a social media tax - and are we a vegan nation?

The father of a teenage girl who took her own life says he has no doubt social media helped kill his daughter. <br /><br />Ian Russell's backing a new report which calls for companies to pay towards research into potential harms. We ask whether that's the answer.<br /><br />And as it's revealed almost a quarter of all new UK food products launched last year were labelled vegan, we ask whether we've become a vegan nation.