Anyone who would like insight into why black poverty in America persists in the pathological way it does should read a recent lead story in National Journal called "Social Policy - The Katrina Experiment."

The article provides a useful and revealing panorama of low-income-housing policy since its inception in the Johnson administration, through today's thinking regarding policy options for housing for the hundreds of thousands of Katrina evacuees who are still unsettled.

For me, two troubling themes jump out:

First, the common denominator of low-income-housing programs over these last 40 years is that they have been consistent failures. Yet, despite this indisputable fact, today's social-policy gurus persist in search of the magic government low-income-housing program, rather than appreciating that the problem has been, and is today, government interference in private lives.

Second, and, frankly, revolting, is how graphically clear it is that social "scientists" view poor blacks as simple laboratory guinea pigs.

Consider, for instance, the following, regarding "mobility theory," which hypothesizes that the only hope for poor black neighborhoods is to break them up and disperse folks into white or racially mixed neighborhoods:

"By 1992, Congress was ready to test the mobility theory rigorously. Between 1994 and 1998, housing authorities in five cities recruited 4,600 very-low-income families for Moving to Opportunity demonstrations _ still ongoing _ intended to compare the outcomes in three groups of families. One group received regular Section 8 government housing vouchers, another group received more-prescriptive vouchers plus counseling, and a control group got no vouchers at all."

Yes, indeed we are talking about human beings here. After a half-century of this sort of thing, can you guess why inner-city blacks may have problems?

The housing projects, started in the Johnson administration, were initiated under the premise that poor blacks can't figure out what other poor people seem to be able to figure out regarding going to work and paying the rent.

The failed housing projects gave birth to Section 8 vouchers in the Nixon administration. As the problems and failures of this social experiment became clear, new ideas blossomed.

"Mobility theory" is today's brainstorm. Use government as a vehicle to purge poor blacks out of the ghetto and disperse them around the country into healthy environments and hope that the good news will rub off.

Social-science elitists are excited today because Hurricane Katrina has become an unexpected accomplice. It did their work for them to implement the first part of the experiment _ it purged poor blacks out of their neighborhoods. Now they want to design government programs to do the rest.

Here's David Brooks of The New York Times: Continued...