MICKEY KAUS ON the demise of private-sector unions. “The most significant number in the recent Bureau of Labor Statistics release on unionization is probably this: Only 6.9 percent of private sector workers are in unions. That’s the same percent as last year. In the middle of the 20th century, it was 35%. … The number is significant because it suggests that labor’s much-publicized private sector organizing drives have failed. They appeared to be meeting with some success a few years ago–the private sector rate actually rose from 7.4% to 7.6% between 2006 and 2008. Those union gains have now apparently been lost, and the private sector unionization rate again asymptotically approaches zero. … Are Obama’s recess appointments to the NLRB labor’s last hurrah?”