Guess this explains why they could "Rollback" prices.

(San Francisco-AP) -- A San Francisco federal judge has granted

class-action status to a sex-discrimination case against Wal-Mart.

The suit could represent as many as one-point-six (m) million

current and former female workers, in what has become the largest

private civil rights case in U-S history.

The suit alleges Wal-Mart set up a system that frequently pays

female workers less than their male counterparts for comparable

jobs and bypasses women for key promotions.

Wal-Mart had hoped to limit the scope of the lawsuit filed in

San Francisco three years ago. Anticipating today's announcement,

Wal-Mart said it planned to appeal.