@CNN: Violent crime is like infectious disease — and we know how to stop it spreading | via @CNNhealth https://t.co/Goi3rsxrCj https://t.co/JeSgN9a9Sz

@CNN: Violent crime is like infectious disease — and we know how to stop it spreading | via @CNNhealth https://t.co/Goi3rsxrCj https://t.co/JeSgN9a9Sz