Violent crime in the US increased in 2020 after declining for decades. CNN's John Avlon looks at what politicians can do to prevent this increase in violence after the nation's latest mass shooting left nine dead in San Jose, California.
Violent crime in the US increased in 2020 after declining for decades. CNN's John Avlon looks at what politicians can do to prevent this increase in violence after the nation's latest mass shooting left nine dead in San Jose, California.
