In an important decision, the Ninth Circuit holds en banc that a "factor other than sex" under the Equal Pay Act (29 U.S.C. § 206(d)(1)) must be "job-related," and thus rejects an employer's use of pre-employment salary history as a reason to pay a woman less than a man doing the same work. The court overrules its prior decision on this subject, Kouba v. Allstate Ins. Co., 691 F.3d 873 (9th Cir. 1982).