In a remarkable ruling issued earlier this month, the Third Circuit Court of Appeals held in Oberdorf v. Amazon that, under Pennsylvania products liability law, Amazon could be found liable for a third party vendor’s sale of a defective product via Amazon Marketplace.

Despite the simplistic narrative tying President Trump’s vision of the world to conservatism, there is nothing conservative about his views on the First Amendment and how it applies to social media companies.

The Department should be commended for undertaking this workshop “to explore industry dynamics in media advertising and the implications for antitrust enforcement and policy.... and the competitive dynamics of media advertising in general.” The competitive dynamics of advertising markets—and digital advertising markets, in particular—are complicated and not well-understood.

What does it mean to “own” something? A simple question (with a complicated answer, of course) that, astonishingly, goes unasked in a recent article in the Pennsylvania Law Review entitled,…