Johnson Controls, Inc., manufactures batteries. Lead is a primary ingredient in that manufacturing pro- cess. A pregnant female employee's occupational exposure to lead involves a risk of harm to a fetus that she is carrying. For this reason, Johnson Con- trols excluded women who are pregnant or who are capable of bearing children from jobs that involve exposure to lead. Numerous plaintiffs, including a woman who had chosen to be sterilized to avoid losing her job, filed a class action against Johnson Controls under Title VII. Is Johnson Controls entitled to use the BFOQ defense?