Mariella Frostrup meets teenage girls who say they have been abused, assaulted or raped by teenage boys, and asks whether we should be doing more to protect our children. With exclusive new data from police forces, she reveals how reports of abuse have risen sharply in the past four years, despite government promises to tackle the problem. She asks if social media and pornography could be to blame, and if schools could be handling the problem better.

Reporter Rory Carson, himself a former professional player, investigates the system that has produced some of the England team's brightest stars.