'Battle for your brain': What the rise of brain-computer interface technology means for you

Computer brain interfaces used to be the stuff of science fiction. Now, headphones and earbuds with sensors that can read your brain waves – and sell your data – are hitting the market. Experts say it’s the time to establish rules of the road. About: On Point is WBUR’s award-winning, daily public radio show and podcast. Every weekday, host Meghna Chakrabarti leads provocative conversations that help make sense of the world.