Don't make policy based on this correlation!

Walter Williams' latest appears to demonstrate that black unemployment was lowest during the dark years of Jim Crow and other forms of institutionalized racism, rose during the start of the Great Society, and now is reaching new heights under the Obama administration.  In other words, what the Klan and such failed to do (and thankfully so) in years past, the welfare state and our first black President have, um, "achieved."  With friends like these, blacks don't need any enemies.