America's murder surge - why homicides are up but solving them is at an all time low. Plus 'Racist Roads' - how infrastructure was used to enforce segregation and deepen racial injustice. Chas and John look at the week.

Homicide or self-defence? Two high-profile murder trials reignite divisions on race, guns and 'vigilante justice'. Plus, as scientists square off over the origins of COVID, the lab leak theory meets its match.