Will the Black Lives Matter movement create lasting change?

What’s happening: There’s no question that the wave of protests against police violence and racial injustice across the country has had a tremendous impact. For weeks, the country’s attention has been locked on a nationwide movement at a scale not seen since the 1960s.

Like the protests today, the civil rights movement forced many Americans to confront their attitudes toward race in a new and revealing way. But the success of that era wasn’t just psychological. The 1960s were also a period of tremendous systemic change that enshrined principles...