None:
Fri, Mar 9, 2012 10:47 AM EST

The sudden, sharp drop in black unemployment that set economists buzzing in January appears to have in fact been so much statistical noise. The [February 2012 job numbers](http://www.bls.gov/news.release/empsit.t02.htm) are out and black unemployment went right back up, to 14.1 percent (roughly double that of white unemployment, a disparity that has held for decades).