There is a common misconception about the U.S. Supreme Court that all cases that it rules on are created equal.  

They’re not. Some take on more significance than others.

Case in point: Lewis v. City of Chicago, which was argued yesterday (transcript available here).  I’ve previously discussed the case in an earlier post

UPDATED 5/19/09

The U.S. Supreme Court has been very busy this morning.

First, in a 7-2 decision, the Court held that an employer (inthis case AT&T) did not violate the Pregnancy Discrimination Act when it gave less retirement credit for pregnancy leaves that occurred prior to the passage of the act. 

In addition, the