Contraception. The topic has become controversial in recent years. But should it be? Melinda Gates believes that many of the world's social change issues depend on ensuring that women are able to control their rate of having kids. In this significant talk, she makes the case for the world to re-examine an issue she intends to lend her voice to for the next decade. (Filmed at TEDxChange.)

Talk by Melinda Gates.

Learn more about your ad choices. Visit megaphone.fm/adchoices