According to the CDC, the teenage birth rate has dropped dramatically over the last two decades. Advocates say comprehensive sex education and access to contraception are two reasons for that decline. But, in a post-Roe world, some states are rethinking their sex ed requirements. Parents are getting involved too, voicing their concerns about what sex ed classes now cover.Curricula vary wildly across the country. In some states, like Indiana, educators are reporting online threats and harassment over these classes.We hear from teachers, parents and students from around the country on changes they want to see. Want to support 1A? Give to your local public radio station and subscribe to this podcast. Have questions? Find us on Twitter @1A.