UPDATE: It wasn't unanimous. It was a 5 -4 decision with Scalia writing for the majority. The initial report was wrong.
This is just breaking. Not a surprise that this Supreme Court would side with Wal-Mart, but, surprised it was unanimous:
The Supreme Court has ruled for Wal-Mart in its fight to block a massive sex discrimination lawsuit on behalf of women who work there.
The court ruled unanimously Monday that the lawsuit against Wal-Mart Stores Inc. cannot proceed as a class action, reversing a decision by the 9th U.S. Circuit Court of Appeals in San Francisco. The lawsuit could have involved up to 1.6 million women, with Wal-Mart facing potentially billions of dollars in damages.
