LET’S start with a quiz. When researchers sent young whites and blacks out to interview for low-wage jobs in New York City armed with equivalent résumés, the result was:

A) Whites and blacks were hired at similar rates.

B) Blacks had a modest edge because of affirmative action.

C) Whites were twice as likely to get callbacks.

The answer is C, and a black applicant with a clean criminal record did no better than a white applicant who was said to have just been released from 18 months in prison.

A majority of whites believe that job opportunities are equal for whites and blacks, according to a PBS poll, but rigorous studies show that just isn’t so.

Back in 2014, I did a series of columns called “When Whites Just Don’t Get It” to draw attention to inequities, and I’m revisiting it because public attention to racial disparities seems to be flagging even as the issues are as grave as ever.