South Africans are calling for radical changes in their police force in the aftermath of a grim video showing local police dragging a man behind a police van.
Anchor Marco Werman talks with New York Times correspondent Lydia Polgreen in Johannesburg.
"When I talk to experts in policing they say that really deep security sector reform is needed. More training. They need to crack down hard on corruption and they need to orient the force toward serving the public rather than going after criminals," Polgreen says. "Clearly it's a message that needs to come from the top and needs to trickle all the way down to the policeman on the beat."