Ackman escalates attack on Business Insider—and Musk eggs him on

Billionaire hedge fund manager Bill Ackman doubled down on his attacks against Business Insider and its parent company Axel Springer. The outlet published a pair of reports finding Ackman’s wife, designer Neri Oxman, plagiarized in her academic work—prompting billionaire Elon Musk to encourage Ackman to sue.