Prime minister condemns violence over Nowak death

Unrest in Southampton following the death of Henry Nowak leads the Prime Minister to call for "serious work, not rage" at PMQs. We examine accusations of two-tier policing and discuss police guidance on race with Matthew Ryder, former lawyer for the family of Stephen Lawrence. Also on The World at One, we hear from Russia as a large-scale drone strike hits targets in St Petersburg on the opening day of its flagship Economic Forum, and we take part in a live studio workout with Ele Breitmeyer as a Harvard study suggests weight training can help extend your life.