How "Overstated" Is Idea of "Acting White"?

In last 20 years, writer says, theory has been debunked; journalist confronts history of his slave-owning family; Gaza crisis boosts ratings 30% for Al Jazeera America; Pinterest, too, pledges to do better on diversity; to a boomer, digital Jet magazine doesn't feel like progress; Stanley Nelson plans film on historically black colleges (7/25/14)