Facebook, Google and Twitter face proposed bill targeting shadowy political ads
https://www.washingtonpost.com/news/the-switch/wp/2017/09/22/facebook-google-and-twitter-could-face-a-new-law-targeting-shadowy-political-ads/
After Facebook CEO Mark Zuckerberg pledged to be more transparent about political ads online, two senators are pushing a measure to force the company and other digital platforms to do so.