At almost the same time Obama was giving that speech to the NAACP, Russlynn Ali, the new head of the Office of Civil Rights at the Department of Education, gave an interview with Education Daily (subscription only, but you can see coverage here) in which she implicitly signaled that school districts had better make sure they have enough minority students in advanced courses, such as AP courses: “If students of color are prohibited from accessing those high standards and rigorous courses, there very well could be a Title VI violation, so we would have some investigating to do.”

Ali did not explicitly call for quotas. But when you’re wielding the kind of overwhelming and unaccountable power possessed by the federal civil rights bureaucracy, you don’t have to be explicit. When Vito Corleone summons the undertaker to the morgue to ask if he’s ready to do him a favor, he doesn’t have to explicitly say what will happen if he’s not.

There are, indeed, proportionately fewer black and Hispanic students in AP and other advanced courses than white students. That’s what fifty years of a unionized government education monopoly that rapturously embraces the NAACP all-excuses culture will do to a nation.

If we start interpreting the mere disparity in numbers as evidence of racial discrimination in admissions to AP courses, rather than as evidence of fifty years of ruinous educational failure facilitated by racial excusemaking, what will be the effect?

Whatever her intentions, Ali’s remarks cannot have any outcome but the widespread — and no doubt unacknowledged — adoption of de facto racial quotas for AP courses and other advanced courses in high schools across the country. What’s the first thing people do when a gunman starts shooting indiscriminately into a crowd? They run for cover.

Suppose you’re a principal or the superintendent of a school district. You wake up one morning and see that the head of the Office of Civil Rights is concerned about the racial disparity among students in AP courses and casually raises the prospect of Title VI lawsuits wherever her office concludes “students of color are prohibited from accessing” such courses.

The first thought in your head would be: What percentage of our AP students are minorities? And if that number were even one point below the percentage of minority students in your overall student population, the second thought in your head would be: How can I possibly protect myself from being obliterated by the federal civil rights juggernaut, should I be unfortunate enough to catch its eye?

Under those circumstances there are only two things that could possibly prevent you from quietly adopting a racial quota for admission to AP courses. One would be a firmly held opposition to quotas on principle. The other would be a level of reckless and irresponsible disregard for your own safety such as one normally finds only in asylums. Martyrs and madmen will resist quotas; the rest will run for cover.

In other words, once you’ve issued the threat, there’s no need to impose a quota. The threat is the quota.

For the record, I’m all in favor of having and enforcing real civil rights protections — by which I mean equal and individual civil rights protections — in the school system. In any case where it can be shown with actual evidence, not mere numerical disparities, that anyone anywhere has prevented even one deserving student from accessing AP courses on account of his race, by all means punish that person with all appropriate severity.

But that’s not what we’re talking about here. The practical impact of Ali’s comments will be precisely to deny thousands of deserving students from accessing AP courses on account of their race. In other words, I’m not criticizing Ali’s comments because I’m against civil rights enforcement; I’m criticizing Ali’s comments because I’m in favor of civil rights enforcement. If I didn’t care about civil rights I wouldn’t be writing this column.

And I’m also writing it because I care about education. Few things have done more to destroy the education of minority students than racial quotas, and more broadly the all-excuses culture that both generates quotas and is generated by them.

The “no excuses!” culture has made a lot of progress against the all-excuses culture in the education world over the past decade. That’s why the NAACP applauded Obama. That’s why Congress was persuaded to pass No Child Left Behind. That’s why school vouchers have become so successful.

And that’s why I hope the administration starts listening to its president.