KEY POINTS
  • "I think individuals need to know what data is being collected about us ... [and] what that data value is," Virginia Sen. Mark Warner tells CNBC.
  • The United States needs to do more to address user privacy and monetization of the data that social media companies collect, he says on "Closing Bell."
  • "I think the data evaluation bill is necessary but not sufficient," he says.

Big Tech companies should put a price tag on data they collect and disclose the value of that information to their users, Sen. Mark Warner, D-Va., told CNBC on Wednesday.

The two-term senator collaborated with Sen. Josh Hawley, R-Mo., to introduce a bill earlier this week that would beef up regulations and provide more transparency.