Sen. Elizabeth Warren targets brokers that share location data related to abortions

With the U.S. Supreme Court poised to overturn Roe v. Wade, Sen. Elizabeth Warren has announced new legislation targeting groups that share cell phone location and health data. The proposal comes after reports of groups using the data to target people who have been in or near abortion clinics.

Boston Globe technology writer Hiawatha Bray walks us through the controversy in our regular series, Tech Talk.