Your Brain Waves Are Up for Sale. A New Law Wants to Change That.

Siddharth Hariharoan tries to control a toy helicopter with his mind through the MindWave Mobile, a device by NeuroSky that reads brain waves.Credit...Winni Wintermeyer for The New York Times Consumers have grown accustomed to the prospect that their personal data, such as email addresses, social contacts, browsing history and genetic ancestry, are being collected and often resold by the apps and