How more exercise in school could help cut youth knife crime

Schools are being accused of failing young people, leading to the rise in gang violence and fatal stabbings across the UK.Harriet Sergeant, a research fellow for the Centre of Policy Studies, has described adolescent males as an "alien species" who need "special care and attention" in schools.There's nothing more hierarchical, structured or competitive or active than a gang," Ms Sergeant told Adam Boulton on the All Out Politics podcast.