Facebook releases emails showing data debates, launches new probe of marketing partners

On the same day that Facebook released a batch of emails revealing new details about how it shared data with political advertisers, the company also launched a sweeping review of its marketing partners in a renewed push to uncover data abusers, including on Instagram.On Friday, under pressure from regulators and lawmakers, Facebook released a series of emails from 2015 and 2016 that help define the timeline around when the company first understood the threat from political data brokers. The most