For the first time in history, women are half of all U.S. workers, and mothers are the primary or co-breadwinners in nearly two-thirds of American families. The recent economic downturn accelerated this trend: Men lost three-quarters of the jobs shed from December 2007 to October 2009. Consequently, gender discrimination has become not just a women’s issue, but a family issue that has taken center stage in the country’s legal and political arena.

Developments in this area are increasingly affecting American employers — and their corporate law departments — as evidenced by the growing popularity of multimillion-dollar gender-discrimination lawsuits filed against some of the world’s largest corporations. Some of these suits have had devastating results for employers, including a 2010 $250 million jury verdict against Novartis AG, a company that was previously voted by Working Mother magazine as one of America’s top 100 places for women to work.