Facebook Keeps Data Secret, Letting Conservative Bias Claims Persist

Sen. Roger Wicker hit a familiar note when he announced on Thursday that the Commerce Committee was issuing subpoenas to force the testimony of Facebook Chief Executive Mark Zuckerberg and other tech leaders.

Tech platforms like Facebook, the Mississippi Republican said, "disproportionately suppress and censor conservative views online."

When top tech bosses were summoned to Capitol Hill in July for a hearing on the industry's immense power, Republican Congressman Jim Jordan made an even blunter accusation.

"I'll just cut to the chase, Big Tech is out to get conservatives," Jordan...