"You have to remember that as an employee, you don't have total free speech anymore," he said.

According to this lawyer, in this article about a flight attendant who got busted for posting a photo of herself in uniform, employees blogging may not have free speech rights.

That is reaching. I think that it was the use of the uniform that was the problem. That uniform, and the image, are more Delta's than the wearer's. Free speech, however, starts when the work clock stops.

In some countries, you have free speech at work too... just not in America.