https://www.cnet.com/news/bill-would-outlaw-dark-patterns-that-help-tech-companies-get-your-data/

Concerns from lawmakers over data collection have dogged Silicon Valley for more than a year. When the Cambridge Analytica data privacy scandal came to light in early 2018, Congress called Facebook executives to Washington for tracking users in hidden ways. Tech companies are facing additional scrutiny from legislators over their role in the spread of misinformation during the 2016 US presidential election, and Facebook and Google also face questions from Congress about the spread of white nationalism on social media.

A press release from Warner's office noted that the bill comes a day before the one year anniversary of Facebook CEO Mark Zuckerberg's testimony before Congress about the Cambridge Analytica scandal. Facebook didn't immediately respond to a request for comment.