http://www.foxbusiness.com/investing/2012/05/02/emac/
Snippets
"as analysts dig into the government job numbers, questions are increasingly being raised about the reliability of the data, from questionable revisions in the weekly jobless numbers to the odd changes in unemployment rates."
"For 59 out of the last 60 weeks, the weekly jobless numbers have been revised, after the fact, always in the same direction: higher. That's unheard of.
Those revisions higher make the present week’s unemployment number look better in comparison"