Menstrual justice is the latest front in the global fight for gender equality. Author Anita Diamant's new book, Period. End of Sentence, explores the stigma around menstruation and efforts around the world to ensure that menstruating people are not denied access to education, work, and full participation in society. Anita, whose 1997 best seller The Red Tent imagined a special retreat where the Biblical matriarchs went when they were having their periods, says in the modern day, menstrual justice has become "part of the justice language."