What's behind the sharp rise in murders across the U.S.?

Murders across the U.S. have skyrocketed in 2020, while nonviolent offenses have largely dropped, according to publicly available crime data. But efforts to curb homicides come at a time when police departments are facing both staffing shortages because of the COVID-19 pandemic and lingering distrust in communities of color following months of nationwide protests. John Yang reports.