The new 30s club: NZ's Jacinda Ardern joins list of maverick leaders

We look at New Zealand's youthful and youngest ever prime minister, Jacinda Ardern, who's joined the growing list of world leaders under 40! In other news, we look at the role that Twitter has played in getting women to open up about their experiences of sexual assault. Finally, Oxford and Cambridge universities come under fire for admitting too few black students in what some have called social apartheid.