The drive to end "period poverty" by making sanitary products for women more affordable is building momentum. It's a problem shared by girls and women, throughout the world, experiencing homelessness, fleeing domestic violence or enduring poverty. In the U.S., one in five girls miss school because of the cost of tampons or pads, which are taxed in 34 states.  It was Australian Rochelle Courtenay, founder of Share the Dignity, who begn the global drive to end the gender-based "tampon tax" abd tackle the stigma around menstruation. Courtenay talked about her Big Idea whose time has come with Anne Doyle for the Game Changers podcast of the International Women's Forum. Click her for info on organizations and efforts to tackle this problem.